diff --git a/apps/web/components/availability/Schedule.tsx b/apps/web/components/availability/Schedule.tsx
index b910d72cfd..22a60acb19 100644
--- a/apps/web/components/availability/Schedule.tsx
+++ b/apps/web/components/availability/Schedule.tsx
@@ -1,13 +1,11 @@
 import { PlusIcon, TrashIcon } from "@heroicons/react/outline";
 import { DuplicateIcon } from "@heroicons/react/solid";
 import classNames from "classnames";
-import dayjs, { Dayjs, ConfigType } from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import React, { useCallback, useEffect, useMemo, useState } from "react";
 import { Controller, useFieldArray, useFormContext } from "react-hook-form";
 import { GroupBase, Props } from "react-select";
 
+import dayjs, { Dayjs, ConfigType } from "@calcom/dayjs";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import Button from "@calcom/ui/Button";
 import Dropdown, { DropdownMenuTrigger, DropdownMenuContent } from "@calcom/ui/Dropdown";
@@ -19,9 +17,6 @@ import { TimeRange } from "@lib/types/schedule";
 
 import Select from "@components/ui/form/Select";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 /** Begin Time Increments For Select */
 const increment = 15;
 
diff --git a/apps/web/components/booking/AvailableTimes.tsx b/apps/web/components/booking/AvailableTimes.tsx
index 3a78be01a9..01086584f7 100644
--- a/apps/web/components/booking/AvailableTimes.tsx
+++ b/apps/web/components/booking/AvailableTimes.tsx
@@ -1,9 +1,9 @@
 import { SchedulingType } from "@prisma/client";
-import dayjs, { Dayjs } from "dayjs";
 import Link from "next/link";
 import { useRouter } from "next/router";
 import { FC, useEffect, useState } from "react";
 
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import { nameOfDay } from "@calcom/lib/weekday";
 import { SkeletonContainer, SkeletonText } from "@calcom/ui";
diff --git a/apps/web/components/booking/BookingListItem.tsx b/apps/web/components/booking/BookingListItem.tsx
index 429f3ea16d..bfbb9d5a6a 100644
--- a/apps/web/components/booking/BookingListItem.tsx
+++ b/apps/web/components/booking/BookingListItem.tsx
@@ -9,11 +9,11 @@ import {
 } from "@heroicons/react/outline";
 import { RefreshIcon } from "@heroicons/react/solid";
 import { BookingStatus } from "@prisma/client";
-import dayjs from "dayjs";
 import { useRouter } from "next/router";
 import { useState } from "react";
 import { useMutation } from "react-query";
 
+import dayjs from "@calcom/dayjs";
 import { parseRecurringEvent } from "@calcom/lib";
 import classNames from "@calcom/lib/classNames";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
diff --git a/apps/web/components/booking/DatePicker.tsx b/apps/web/components/booking/DatePicker.tsx
index dff8255e75..2db969e538 100644
--- a/apps/web/components/booking/DatePicker.tsx
+++ b/apps/web/components/booking/DatePicker.tsx
@@ -1,12 +1,9 @@
 import { ChevronLeftIcon, ChevronRightIcon } from "@heroicons/react/solid";
 import { PeriodType } from "@prisma/client";
-import dayjs, { Dayjs } from "dayjs";
-import dayjsBusinessTime from "dayjs-business-days2";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import { memoize } from "lodash";
 import { useEffect, useRef, useState } from "react";
 
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import { useEmbedStyles } from "@calcom/embed-core/embed-iframe";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 
@@ -20,10 +17,6 @@ import { WorkingHours } from "@lib/types/schedule";
 
 import Loader from "@components/Loader";
 
-dayjs.extend(dayjsBusinessTime);
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 type DatePickerProps = {
   weekStart: string;
   onDatePicked: (pickedDate: Dayjs) => void;
diff --git a/apps/web/components/booking/pages/AvailabilityPage.tsx b/apps/web/components/booking/pages/AvailabilityPage.tsx
index 957e10a7fd..689088e616 100644
--- a/apps/web/components/booking/pages/AvailabilityPage.tsx
+++ b/apps/web/components/booking/pages/AvailabilityPage.tsx
@@ -15,10 +15,6 @@ import {
 import { EventType } from "@prisma/client";
 import * as Collapsible from "@radix-ui/react-collapsible";
 import { useContracts } from "contexts/contractsContext";
-import dayjs, { Dayjs } from "dayjs";
-import customParseFormat from "dayjs/plugin/customParseFormat";
-import timeZone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import { TFunction } from "next-i18next";
 import { useRouter } from "next/router";
 import { useEffect, useMemo, useState } from "react";
@@ -26,6 +22,7 @@ import { FormattedNumber, IntlProvider } from "react-intl";
 import { z } from "zod";
 
 import { AppStoreLocationType, LocationObject, LocationType } from "@calcom/app-store/locations";
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import {
   useEmbedNonStylesConfig,
   useEmbedStyles,
@@ -60,10 +57,6 @@ import type { AvailabilityPageProps } from "../../../pages/[user]/[type]";
 import type { DynamicAvailabilityPageProps } from "../../../pages/d/[link]/[slug]";
 import type { AvailabilityTeamPageProps } from "../../../pages/team/[slug]/[type]";
 
-dayjs.extend(utc);
-dayjs.extend(timeZone);
-dayjs.extend(customParseFormat);
-
 type Props = AvailabilityTeamPageProps | AvailabilityPageProps | DynamicAvailabilityPageProps;
 
 export const locationKeyToString = (location: LocationObject, t: TFunction) => {
diff --git a/apps/web/components/booking/pages/BookingPage.tsx b/apps/web/components/booking/pages/BookingPage.tsx
index 1f493e26c5..8c793e3426 100644
--- a/apps/web/components/booking/pages/BookingPage.tsx
+++ b/apps/web/components/booking/pages/BookingPage.tsx
@@ -11,7 +11,6 @@ import {
 import { zodResolver } from "@hookform/resolvers/zod";
 import { EventTypeCustomInputType } from "@prisma/client";
 import { useContracts } from "contexts/contractsContext";
-import dayjs from "dayjs";
 import { useSession } from "next-auth/react";
 import dynamic from "next/dynamic";
 import Head from "next/head";
@@ -24,6 +23,7 @@ import { useMutation } from "react-query";
 import { v4 as uuidv4 } from "uuid";
 import { z } from "zod";
 
+import dayjs from "@calcom/dayjs";
 import {
   useEmbedNonStylesConfig,
   useIsBackgroundTransparent,
diff --git a/apps/web/ee/components/TrialBanner.tsx b/apps/web/ee/components/TrialBanner.tsx
index d5b4172a5d..b80cb19dd3 100644
--- a/apps/web/ee/components/TrialBanner.tsx
+++ b/apps/web/ee/components/TrialBanner.tsx
@@ -1,5 +1,4 @@
-import dayjs from "dayjs";
-
+import dayjs from "@calcom/dayjs";
 import Button from "@calcom/ui/Button";
 
 import { TRIAL_LIMIT_DAYS } from "@lib/config/constants";
diff --git a/apps/web/ee/components/apiKeys/ApiKeyDialogForm.tsx b/apps/web/ee/components/apiKeys/ApiKeyDialogForm.tsx
index 783036f464..4cd03bc915 100644
--- a/apps/web/ee/components/apiKeys/ApiKeyDialogForm.tsx
+++ b/apps/web/ee/components/apiKeys/ApiKeyDialogForm.tsx
@@ -1,8 +1,8 @@
 import { ClipboardCopyIcon } from "@heroicons/react/solid";
-import dayjs from "dayjs";
 import { useState } from "react";
 import { Controller, useForm } from "react-hook-form";
 
+import dayjs from "@calcom/dayjs";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import showToast from "@calcom/lib/notification";
 import Button from "@calcom/ui/Button";
diff --git a/apps/web/ee/components/apiKeys/ApiKeyListItem.tsx b/apps/web/ee/components/apiKeys/ApiKeyListItem.tsx
index 4b36bad2ff..f58338a084 100644
--- a/apps/web/ee/components/apiKeys/ApiKeyListItem.tsx
+++ b/apps/web/ee/components/apiKeys/ApiKeyListItem.tsx
@@ -1,8 +1,7 @@
 import { PencilAltIcon, TrashIcon } from "@heroicons/react/outline";
 import { ExclamationIcon } from "@heroicons/react/solid";
-import dayjs from "dayjs";
-import relativeTime from "dayjs/plugin/relativeTime";
 
+import dayjs from "@calcom/dayjs";
 import classNames from "@calcom/lib/classNames";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import Button from "@calcom/ui/Button";
@@ -15,8 +14,6 @@ import { ListItem } from "@components/List";
 import ConfirmationDialogContent from "@components/dialog/ConfirmationDialogContent";
 import Badge from "@components/ui/Badge";
 
-dayjs.extend(relativeTime);
-
 export type TApiKeys = inferQueryOutput<"viewer.apiKeys.list">[number];
 
 export default function ApiKeyListItem(props: { apiKey: TApiKeys; onEditApiKey: () => void }) {
diff --git a/apps/web/ee/components/stripe/PaymentPage.tsx b/apps/web/ee/components/stripe/PaymentPage.tsx
index 285a82c52e..5636b434bc 100644
--- a/apps/web/ee/components/stripe/PaymentPage.tsx
+++ b/apps/web/ee/components/stripe/PaymentPage.tsx
@@ -1,14 +1,11 @@
 import { CreditCardIcon } from "@heroicons/react/solid";
 import { Elements } from "@stripe/react-stripe-js";
 import classNames from "classnames";
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
 import Head from "next/head";
 import { FC, useEffect, useState } from "react";
 import { FormattedNumber, IntlProvider } from "react-intl";
 
+import dayjs from "@calcom/dayjs";
 import { sdkActionManager, useIsEmbed } from "@calcom/embed-core/embed-iframe";
 import getStripe from "@calcom/stripe/client";
 import PaymentComponent from "@ee/components/stripe/Payment";
@@ -19,10 +16,6 @@ import useTheme from "@lib/hooks/useTheme";
 import { LocationOptionsToString } from "@lib/locationOptions";
 import { isBrowserLocale24h } from "@lib/timeFormat";
 
-dayjs.extend(utc);
-dayjs.extend(toArray);
-dayjs.extend(timezone);
-
 const PaymentPage: FC<PaymentPageProps> = (props) => {
   const { t } = useLocale();
   const [is24h, setIs24h] = useState(isBrowserLocale24h());
diff --git a/apps/web/ee/components/team/availability/TeamAvailabilityModal.tsx b/apps/web/ee/components/team/availability/TeamAvailabilityModal.tsx
index 985c307e3e..8de7650a5c 100644
--- a/apps/web/ee/components/team/availability/TeamAvailabilityModal.tsx
+++ b/apps/web/ee/components/team/availability/TeamAvailabilityModal.tsx
@@ -1,7 +1,6 @@
-import dayjs from "dayjs";
-import utc from "dayjs/plugin/utc";
 import React, { useState, useEffect } from "react";
 
+import dayjs from "@calcom/dayjs";
 import { WEBAPP_URL } from "@calcom/lib/constants";
 import LicenseRequired from "@ee/components/LicenseRequired";
 
@@ -14,8 +13,6 @@ import TimezoneSelect, { ITimezone } from "@components/ui/form/TimezoneSelect";
 
 import TeamAvailabilityTimes from "./TeamAvailabilityTimes";
 
-dayjs.extend(utc);
-
 interface Props {
   team?: inferQueryOutput<"viewer.teams.get">;
   member?: inferQueryOutput<"viewer.teams.get">["members"][number];
diff --git a/apps/web/ee/components/team/availability/TeamAvailabilityScreen.tsx b/apps/web/ee/components/team/availability/TeamAvailabilityScreen.tsx
index e81319719a..51d5071dc3 100644
--- a/apps/web/ee/components/team/availability/TeamAvailabilityScreen.tsx
+++ b/apps/web/ee/components/team/availability/TeamAvailabilityScreen.tsx
@@ -1,8 +1,8 @@
-import dayjs from "dayjs";
 import React, { useState, useEffect, CSSProperties } from "react";
 import AutoSizer from "react-virtualized-auto-sizer";
 import { FixedSizeList as List } from "react-window";
 
+import dayjs from "@calcom/dayjs";
 import { CAL_URL } from "@calcom/lib/constants";
 
 import { inferQueryOutput, trpc } from "@lib/trpc";
diff --git a/apps/web/ee/components/team/availability/TeamAvailabilityTimes.tsx b/apps/web/ee/components/team/availability/TeamAvailabilityTimes.tsx
index 18f4d0ae93..f89aff6718 100644
--- a/apps/web/ee/components/team/availability/TeamAvailabilityTimes.tsx
+++ b/apps/web/ee/components/team/availability/TeamAvailabilityTimes.tsx
@@ -1,9 +1,9 @@
 import classNames from "classnames";
-import dayjs, { Dayjs } from "dayjs";
-import utc from "dayjs/plugin/utc";
 import React from "react";
 import { ITimezone } from "react-timezone-select";
 
+import { Dayjs } from "@calcom/dayjs";
+
 import getSlots from "@lib/slots";
 import { trpc } from "@lib/trpc";
 
@@ -19,8 +19,6 @@ interface Props {
   className?: string;
 }
 
-dayjs.extend(utc);
-
 export default function TeamAvailabilityTimes(props: Props) {
   const { data, isLoading } = trpc.useQuery(
     [
diff --git a/apps/web/lib/clock.ts b/apps/web/lib/clock.ts
index cc3d0b8248..12e7955988 100644
--- a/apps/web/lib/clock.ts
+++ b/apps/web/lib/clock.ts
@@ -1,15 +1,9 @@
 // handles logic related to user clock display using 24h display / timeZone options.
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
-
+import dayjs from "@calcom/dayjs";
 import { localStorage } from "@calcom/lib/webstorage";
 
 import { isBrowserLocale24h } from "./timeFormat";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 interface TimeOptions {
   is24hClock: boolean;
   inviteeTimeZone: string;
diff --git a/apps/web/lib/getting-started.tsx b/apps/web/lib/getting-started.tsx
index 601e8b9549..8da6333da6 100644
--- a/apps/web/lib/getting-started.tsx
+++ b/apps/web/lib/getting-started.tsx
@@ -1,5 +1,6 @@
 import { User } from "@prisma/client";
-import dayjs from "dayjs";
+
+import dayjs from "@calcom/dayjs";
 
 export const ONBOARDING_INTRODUCED_AT = dayjs("September 1 2021").toISOString();
 
diff --git a/apps/web/lib/hooks/useSlots.ts b/apps/web/lib/hooks/useSlots.ts
index 9119ba1a39..c319a04907 100644
--- a/apps/web/lib/hooks/useSlots.ts
+++ b/apps/web/lib/hooks/useSlots.ts
@@ -1,18 +1,13 @@
 import { SchedulingType } from "@prisma/client";
-import dayjs, { Dayjs } from "dayjs";
-import isBetween from "dayjs/plugin/isBetween";
-import utc from "dayjs/plugin/utc";
 import { stringify } from "querystring";
 import { useEffect, useState } from "react";
 
 import type { CurrentSeats } from "@calcom/core/getUserAvailability";
+import dayjs, { Dayjs } from "@calcom/dayjs";
 
 import getSlots from "@lib/slots";
 import type { TimeRange, WorkingHours } from "@lib/types/schedule";
 
-dayjs.extend(isBetween);
-dayjs.extend(utc);
-
 type AvailabilityUserResponse = {
   busy: TimeRange[];
   timeZone: string;
diff --git a/apps/web/lib/isOutOfBounds.tsx b/apps/web/lib/isOutOfBounds.tsx
index 85c65cf33e..1a115f737d 100644
--- a/apps/web/lib/isOutOfBounds.tsx
+++ b/apps/web/lib/isOutOfBounds.tsx
@@ -1,8 +1,6 @@
 import { EventType, PeriodType } from "@prisma/client";
-import dayjs from "dayjs";
-import dayjsBusinessTime from "dayjs-business-days2";
 
-dayjs.extend(dayjsBusinessTime);
+import dayjs from "@calcom/dayjs";
 
 function isOutOfBounds(
   time: dayjs.ConfigType,
diff --git a/apps/web/lib/parseDate.ts b/apps/web/lib/parseDate.ts
index 2769ca1891..9fca8e3006 100644
--- a/apps/web/lib/parseDate.ts
+++ b/apps/web/lib/parseDate.ts
@@ -1,7 +1,7 @@
-import dayjs, { Dayjs } from "dayjs";
 import { I18n } from "next-i18next";
 import { RRule } from "rrule";
 
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import { RecurringEvent } from "@calcom/types/Calendar";
 
 import { detectBrowserTimeFormat } from "@lib/timeFormat";
diff --git a/apps/web/lib/parseZone.ts b/apps/web/lib/parseZone.ts
index 10a9374625..9d9454dfcd 100644
--- a/apps/web/lib/parseZone.ts
+++ b/apps/web/lib/parseZone.ts
@@ -1,4 +1,4 @@
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 
 const ISO8601_OFFSET_FORMAT = /^(.*)([+-])(\d{2}):(\d{2})|(Z)$/;
 
diff --git a/apps/web/lib/slots.ts b/apps/web/lib/slots.ts
index 758b2823da..b76eb487c8 100644
--- a/apps/web/lib/slots.ts
+++ b/apps/web/lib/slots.ts
@@ -1,15 +1,8 @@
-import dayjs, { Dayjs } from "dayjs";
-import isBetween from "dayjs/plugin/isBetween";
-import isToday from "dayjs/plugin/isToday";
-import utc from "dayjs/plugin/utc";
+import dayjs, { Dayjs } from "@calcom/dayjs";
 
 import { getWorkingHours } from "./availability";
 import { WorkingHours } from "./types/schedule";
 
-dayjs.extend(isToday);
-dayjs.extend(utc);
-dayjs.extend(isBetween);
-
 export type GetSlots = {
   inviteeDate: Dayjs;
   frequency: number;
diff --git a/apps/web/next.config.js b/apps/web/next.config.js
index 0dc69b0e4f..d4c5df87a8 100644
--- a/apps/web/next.config.js
+++ b/apps/web/next.config.js
@@ -3,6 +3,7 @@ require("dotenv").config({ path: "../../.env" });
 const withTM = require("next-transpile-modules")([
   "@calcom/app-store",
   "@calcom/core",
+  "@calcom/dayjs",
   "@calcom/ee",
   "@calcom/lib",
   "@calcom/prisma",
diff --git a/apps/web/package.json b/apps/web/package.json
index 9be91d3357..1dd6391f1f 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -30,6 +30,7 @@
     "@calcom/app-store": "*",
     "@calcom/app-store-cli": "*",
     "@calcom/core": "*",
+    "@calcom/dayjs": "*",
     "@calcom/ee": "*",
     "@calcom/embed-core": "*",
     "@calcom/lib": "*",
@@ -66,8 +67,6 @@
     "async": "^3.2.1",
     "bcryptjs": "^2.4.3",
     "classnames": "^2.3.1",
-    "dayjs": "^1.11.2",
-    "dayjs-business-days2": "^1.1.0",
     "googleapis": "^84.0.0",
     "gray-matter": "^4.0.3",
     "handlebars": "^4.7.7",
diff --git a/apps/web/pages/[user]/[type].tsx b/apps/web/pages/[user]/[type].tsx
index ed25ac3f13..03552f3100 100644
--- a/apps/web/pages/[user]/[type].tsx
+++ b/apps/web/pages/[user]/[type].tsx
@@ -1,12 +1,11 @@
 import { UserPlan } from "@prisma/client";
-import dayjs from "dayjs";
 import { GetStaticPropsContext, GetStaticPaths } from "next";
-import { useRouter } from "next/router";
 import { useEffect } from "react";
 import { JSONObject } from "superjson/dist/types";
 import { z } from "zod";
 
 import { locationHiddenFilter, LocationObject } from "@calcom/app-store/locations";
+import dayjs from "@calcom/dayjs";
 import { useIsEmbed } from "@calcom/embed-core/embed-iframe";
 import { WEBAPP_URL } from "@calcom/lib/constants";
 import { getDefaultEvent, getGroupName, getUsernameList } from "@calcom/lib/defaultEvents";
diff --git a/apps/web/pages/[user]/book.tsx b/apps/web/pages/[user]/book.tsx
index ba389252ff..ad9c1894dc 100644
--- a/apps/web/pages/[user]/book.tsx
+++ b/apps/web/pages/[user]/book.tsx
@@ -1,6 +1,3 @@
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import { GetServerSidePropsContext } from "next";
 import { JSONObject } from "superjson/dist/types";
 
@@ -24,9 +21,6 @@ import BookingPage from "@components/booking/pages/BookingPage";
 
 import { ssrInit } from "@server/lib/ssr";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 export type BookPageProps = inferSSRProps<typeof getServerSideProps>;
 
 export default function Book(props: BookPageProps) {
diff --git a/apps/web/pages/api/auth/forgot-password.ts b/apps/web/pages/api/auth/forgot-password.ts
index 6da67f7dd2..37a4a92532 100644
--- a/apps/web/pages/api/auth/forgot-password.ts
+++ b/apps/web/pages/api/auth/forgot-password.ts
@@ -1,11 +1,10 @@
 import { ResetPasswordRequest } from "@prisma/client";
-import dayjs from "dayjs";
 import { NextApiRequest, NextApiResponse } from "next";
 
+import dayjs from "@calcom/dayjs";
 import { sendPasswordResetEmail } from "@calcom/emails";
 import { PASSWORD_RESET_EXPIRY_HOURS } from "@calcom/emails/templates/forgot-password-email";
-
-import prisma from "@lib/prisma";
+import prisma from "@calcom/prisma";
 
 import { getTranslation } from "@server/lib/i18n";
 
diff --git a/apps/web/pages/api/book/event.ts b/apps/web/pages/api/book/event.ts
index d6051935b5..09cd17ec9f 100644
--- a/apps/web/pages/api/book/event.ts
+++ b/apps/web/pages/api/book/event.ts
@@ -1,10 +1,5 @@
 import { BookingStatus, Credential, Prisma, SchedulingType, WebhookTriggerEvents } from "@prisma/client";
 import async from "async";
-import dayjs from "dayjs";
-import dayjsBusinessTime from "dayjs-business-days2";
-import isBetween from "dayjs/plugin/isBetween";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import type { NextApiRequest } from "next";
 import rrule from "rrule";
 import short from "short-uuid";
@@ -12,6 +7,7 @@ import { v5 as uuidv5 } from "uuid";
 
 import EventManager from "@calcom/core/EventManager";
 import { getUserAvailability } from "@calcom/core/getUserAvailability";
+import dayjs from "@calcom/dayjs";
 import {
   sendAttendeeRequestEmail,
   sendOrganizerRequestEmail,
@@ -41,11 +37,6 @@ import { getTranslation } from "@server/lib/i18n";
 
 import verifyAccount from "../../../web3/utils/verifyAccount";
 
-dayjs.extend(dayjsBusinessTime);
-dayjs.extend(utc);
-dayjs.extend(isBetween);
-dayjs.extend(timezone);
-
 const translator = short();
 const log = logger.getChildLogger({ prefix: ["[api] book:user"] });
 
diff --git a/apps/web/pages/api/book/request-reschedule.ts b/apps/web/pages/api/book/request-reschedule.ts
index 8a54528127..85a0e65527 100644
--- a/apps/web/pages/api/book/request-reschedule.ts
+++ b/apps/web/pages/api/book/request-reschedule.ts
@@ -7,7 +7,6 @@ import {
   User,
   WebhookTriggerEvents,
 } from "@prisma/client";
-import dayjs from "dayjs";
 import type { NextApiRequest, NextApiResponse } from "next";
 import { getSession } from "next-auth/react";
 import type { TFunction } from "next-i18next";
@@ -17,6 +16,7 @@ import { getCalendar } from "@calcom/app-store/_utils/getCalendar";
 import { CalendarEventBuilder } from "@calcom/core/builders/CalendarEvent/builder";
 import { CalendarEventDirector } from "@calcom/core/builders/CalendarEvent/director";
 import { deleteMeeting } from "@calcom/core/videoClient";
+import dayjs from "@calcom/dayjs";
 import { sendRequestRescheduleEmail } from "@calcom/emails";
 import { isPrismaObjOrUndefined } from "@calcom/lib";
 import { getTranslation } from "@calcom/lib/server/i18n";
diff --git a/apps/web/pages/api/cancel.ts b/apps/web/pages/api/cancel.ts
index 382369439c..ee60a7a244 100644
--- a/apps/web/pages/api/cancel.ts
+++ b/apps/web/pages/api/cancel.ts
@@ -1,11 +1,11 @@
 import { BookingStatus, Credential, WebhookTriggerEvents } from "@prisma/client";
 import async from "async";
-import dayjs from "dayjs";
 import { NextApiRequest, NextApiResponse } from "next";
 
 import { getCalendar } from "@calcom/app-store/_utils/getCalendar";
 import { FAKE_DAILY_CREDENTIAL } from "@calcom/app-store/dailyvideo/lib/VideoApiAdapter";
 import { deleteMeeting } from "@calcom/core/videoClient";
+import dayjs from "@calcom/dayjs";
 import { sendCancelledEmails } from "@calcom/emails";
 import { isPrismaObjOrUndefined, parseRecurringEvent } from "@calcom/lib";
 import prisma, { bookingMinimalSelect } from "@calcom/prisma";
diff --git a/apps/web/pages/api/cron/bookingReminder.ts b/apps/web/pages/api/cron/bookingReminder.ts
index b90ff94403..3a6a8f5c96 100644
--- a/apps/web/pages/api/cron/bookingReminder.ts
+++ b/apps/web/pages/api/cron/bookingReminder.ts
@@ -1,7 +1,7 @@
 import { BookingStatus, ReminderType } from "@prisma/client";
-import dayjs from "dayjs";
 import type { NextApiRequest, NextApiResponse } from "next";
 
+import dayjs from "@calcom/dayjs";
 import { sendOrganizerRequestReminderEmail } from "@calcom/emails";
 import { isPrismaObjOrUndefined, parseRecurringEvent } from "@calcom/lib";
 import prisma, { bookingMinimalSelect } from "@calcom/prisma";
diff --git a/apps/web/pages/api/cron/downgradeUsers.ts b/apps/web/pages/api/cron/downgradeUsers.ts
index 1a0fd303d9..045ac82b42 100644
--- a/apps/web/pages/api/cron/downgradeUsers.ts
+++ b/apps/web/pages/api/cron/downgradeUsers.ts
@@ -1,8 +1,9 @@
-import dayjs from "dayjs";
 import type { NextApiRequest, NextApiResponse } from "next";
 
+import dayjs from "@calcom/dayjs";
+import prisma from "@calcom/prisma";
+
 import { TRIAL_LIMIT_DAYS } from "@lib/config/constants";
-import prisma from "@lib/prisma";
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
   const apiKey = req.headers.authorization || req.query.apiKey;
diff --git a/apps/web/pages/auth/forgot-password/[id].tsx b/apps/web/pages/auth/forgot-password/[id].tsx
index f806ea3948..dd590d8fbf 100644
--- a/apps/web/pages/auth/forgot-password/[id].tsx
+++ b/apps/web/pages/auth/forgot-password/[id].tsx
@@ -1,13 +1,14 @@
 import { ResetPasswordRequest } from "@prisma/client";
-import dayjs from "dayjs";
 import debounce from "lodash/debounce";
 import { GetServerSidePropsContext } from "next";
 import { getCsrfToken } from "next-auth/react";
 import Link from "next/link";
 import React, { useMemo } from "react";
 
+import dayjs from "@calcom/dayjs";
+import prisma from "@calcom/prisma";
+
 import { useLocale } from "@lib/hooks/useLocale";
-import prisma from "@lib/prisma";
 
 import { HeadSeo } from "@components/seo/head-seo";
 
diff --git a/apps/web/pages/availability/troubleshoot.tsx b/apps/web/pages/availability/troubleshoot.tsx
index 78073f3d81..eafa6195cb 100644
--- a/apps/web/pages/availability/troubleshoot.tsx
+++ b/apps/web/pages/availability/troubleshoot.tsx
@@ -1,7 +1,6 @@
-import dayjs, { Dayjs } from "dayjs";
-import utc from "dayjs/plugin/utc";
 import { useEffect, useState } from "react";
 
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 
 import { QueryCell } from "@lib/QueryCell";
@@ -10,8 +9,6 @@ import { inferQueryOutput, trpc } from "@lib/trpc";
 import Loader from "@components/Loader";
 import Shell from "@components/Shell";
 
-dayjs.extend(utc);
-
 type User = inferQueryOutput<"viewer.me">;
 
 const AvailabilityView = ({ user }: { user: User }) => {
diff --git a/apps/web/pages/cancel/[uid].tsx b/apps/web/pages/cancel/[uid].tsx
index 6ba899dd22..7bd4d30d86 100644
--- a/apps/web/pages/cancel/[uid].tsx
+++ b/apps/web/pages/cancel/[uid].tsx
@@ -1,10 +1,10 @@
 import { CalendarIcon, XIcon, RefreshIcon } from "@heroicons/react/solid";
 import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "@radix-ui/react-collapsible";
-import dayjs from "dayjs";
 import { GetServerSidePropsContext } from "next";
 import { useRouter } from "next/router";
 import { useState } from "react";
 
+import dayjs from "@calcom/dayjs";
 import classNames from "@calcom/lib/classNames";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import { parseRecurringEvent } from "@calcom/lib/isRecurringEvent";
diff --git a/apps/web/pages/d/[link]/book.tsx b/apps/web/pages/d/[link]/book.tsx
index d367882c65..db6a20125d 100644
--- a/apps/web/pages/d/[link]/book.tsx
+++ b/apps/web/pages/d/[link]/book.tsx
@@ -1,7 +1,3 @@
-import { Prisma } from "@prisma/client";
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import { GetServerSidePropsContext } from "next";
 import { JSONObject } from "superjson/dist/types";
 
@@ -18,9 +14,6 @@ import BookingPage from "@components/booking/pages/BookingPage";
 
 import { ssrInit } from "@server/lib/ssr";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 export type HashLinkPageProps = inferSSRProps<typeof getServerSideProps>;
 
 export default function Book(props: HashLinkPageProps) {
diff --git a/apps/web/pages/event-types/[type].tsx b/apps/web/pages/event-types/[type].tsx
index ce165cdd76..d7d55deacd 100644
--- a/apps/web/pages/event-types/[type].tsx
+++ b/apps/web/pages/event-types/[type].tsx
@@ -12,16 +12,12 @@ import {
   TrashIcon,
   UserAddIcon,
   UsersIcon,
-  VideoCameraIcon,
 } from "@heroicons/react/solid";
 import { zodResolver } from "@hookform/resolvers/zod";
 import { EventTypeCustomInput, MembershipRole, PeriodType, Prisma, SchedulingType } from "@prisma/client";
 import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "@radix-ui/react-collapsible";
 import * as RadioGroup from "@radix-ui/react-radio-group";
 import classNames from "classnames";
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import { isValidPhoneNumber } from "libphonenumber-js";
 import { GetServerSidePropsContext } from "next";
 import { useRouter } from "next/router";
@@ -84,9 +80,6 @@ import { getTranslation } from "@server/lib/i18n";
 
 import bloxyApi from "../../web3/dummyResps/bloxyApi";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 interface Token {
   name?: string;
   address: string;
diff --git a/apps/web/pages/getting-started.tsx b/apps/web/pages/getting-started.tsx
index 43c579f8d1..7b6d71779a 100644
--- a/apps/web/pages/getting-started.tsx
+++ b/apps/web/pages/getting-started.tsx
@@ -2,10 +2,6 @@ import { ArrowRightIcon } from "@heroicons/react/outline";
 import { zodResolver } from "@hookform/resolvers/zod";
 import { Prisma } from "@prisma/client";
 import classnames from "classnames";
-import dayjs from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import debounce from "lodash/debounce";
 import omit from "lodash/omit";
 import { NextPageContext } from "next";
@@ -18,6 +14,7 @@ import * as z from "zod";
 
 import getApps from "@calcom/app-store/utils";
 import { getCalendarCredentials, getConnectedCalendars } from "@calcom/core/CalendarManager";
+import dayjs from "@calcom/dayjs";
 import { ResponseUsernameApi } from "@calcom/ee/lib/core/checkPremiumUsername";
 import { Alert } from "@calcom/ui/Alert";
 import Button from "@calcom/ui/Button";
@@ -40,10 +37,6 @@ import TimezoneSelect from "@components/ui/form/TimezoneSelect";
 
 import getEventTypes from "../lib/queries/event-types/get-event-types";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-
 type ScheduleFormValues = {
   schedule: ScheduleType;
 };
diff --git a/apps/web/pages/success.tsx b/apps/web/pages/success.tsx
index ca5c3168ba..5784209c65 100644
--- a/apps/web/pages/success.tsx
+++ b/apps/web/pages/success.tsx
@@ -2,11 +2,6 @@ import { CheckIcon } from "@heroicons/react/outline";
 import { ChevronLeftIcon, ClockIcon, XIcon } from "@heroicons/react/solid";
 import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "@radix-ui/react-collapsible";
 import classNames from "classnames";
-import dayjs from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
 import { createEvent } from "ics";
 import { GetServerSidePropsContext } from "next";
 import { useSession } from "next-auth/react";
@@ -16,6 +11,7 @@ import { useEffect, useRef, useState } from "react";
 import RRule from "rrule";
 import { z } from "zod";
 
+import dayjs from "@calcom/dayjs";
 import {
   sdkActionManager,
   useEmbedNonStylesConfig,
@@ -47,11 +43,6 @@ import { HeadSeo } from "@components/seo/head-seo";
 
 import { ssrInit } from "@server/lib/ssr";
 
-dayjs.extend(utc);
-dayjs.extend(toArray);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-
 function redirectToExternalUrl(url: string) {
   window.parent.location.href = url;
 }
diff --git a/apps/web/pages/video/meeting-ended/[uid].tsx b/apps/web/pages/video/meeting-ended/[uid].tsx
index afad567d90..4b05a5bc1e 100644
--- a/apps/web/pages/video/meeting-ended/[uid].tsx
+++ b/apps/web/pages/video/meeting-ended/[uid].tsx
@@ -1,11 +1,11 @@
 import { CalendarIcon, XIcon } from "@heroicons/react/outline";
 import { ArrowRightIcon } from "@heroicons/react/solid";
-import dayjs from "dayjs";
 import { NextPageContext } from "next";
 import { getSession } from "next-auth/react";
 import { useRouter } from "next/router";
 import { useEffect } from "react";
 
+import dayjs from "@calcom/dayjs";
 import prisma, { bookingMinimalSelect } from "@calcom/prisma";
 import Button from "@calcom/ui/Button";
 
diff --git a/apps/web/pages/video/meeting-not-started/[uid].tsx b/apps/web/pages/video/meeting-not-started/[uid].tsx
index abf24f8da5..4fcbb5a12c 100644
--- a/apps/web/pages/video/meeting-not-started/[uid].tsx
+++ b/apps/web/pages/video/meeting-not-started/[uid].tsx
@@ -1,11 +1,11 @@
 import { CalendarIcon, XIcon } from "@heroicons/react/outline";
 import { ArrowRightIcon } from "@heroicons/react/solid";
-import dayjs from "dayjs";
 import { NextPageContext } from "next";
 import { getSession } from "next-auth/react";
 import { useRouter } from "next/router";
 import { useEffect } from "react";
 
+import dayjs from "@calcom/dayjs";
 import prisma, { bookingMinimalSelect } from "@calcom/prisma";
 import type { inferSSRProps } from "@calcom/types/inferSSRProps";
 import Button from "@calcom/ui/Button";
diff --git a/apps/web/playwright/fixtures/bookings.ts b/apps/web/playwright/fixtures/bookings.ts
index ef4e2fa37e..444beab0e8 100644
--- a/apps/web/playwright/fixtures/bookings.ts
+++ b/apps/web/playwright/fixtures/bookings.ts
@@ -1,14 +1,11 @@
 import type { Page } from "@playwright/test";
 import type { Booking, Prisma } from "@prisma/client";
-import dayjs from "dayjs";
-import utc from "dayjs/plugin/utc";
 import short from "short-uuid";
-import { v5 as uuidv5, v4 as uuidv4 } from "uuid";
+import { v5 as uuidv5 } from "uuid";
 
+import dayjs from "@calcom/dayjs";
 import { prisma } from "@calcom/prisma";
 
-dayjs.extend(utc);
-
 const translator = short();
 
 type BookingFixture = ReturnType<typeof createBookingFixture>;
diff --git a/apps/web/playwright/lib/appstore/wipe-my-cal.test.ts b/apps/web/playwright/lib/appstore/wipe-my-cal.test.ts
index 38501dd703..934237b672 100644
--- a/apps/web/playwright/lib/appstore/wipe-my-cal.test.ts
+++ b/apps/web/playwright/lib/appstore/wipe-my-cal.test.ts
@@ -1,6 +1,6 @@
 import { expect } from "@playwright/test";
-import dayjs from "dayjs";
 
+import dayjs from "@calcom/dayjs";
 import prisma from "@calcom/prisma";
 
 import { test } from "../../lib/fixtures";
diff --git a/apps/web/server/routers/viewer.tsx b/apps/web/server/routers/viewer.tsx
index 83e5a519bf..0cb50c4309 100644
--- a/apps/web/server/routers/viewer.tsx
+++ b/apps/web/server/routers/viewer.tsx
@@ -1,11 +1,11 @@
 import { BookingStatus, MembershipRole, AppCategories, Prisma } from "@prisma/client";
-import dayjs from "dayjs";
 import _ from "lodash";
 import { JSONObject } from "superjson/dist/types";
 import { z } from "zod";
 
 import getApps, { getLocationOptions } from "@calcom/app-store/utils";
 import { getCalendarCredentials, getConnectedCalendars } from "@calcom/core/CalendarManager";
+import dayjs from "@calcom/dayjs";
 import { checkPremiumUsername } from "@calcom/ee/lib/core/checkPremiumUsername";
 import { sendFeedbackEmail } from "@calcom/emails";
 import { sendCancelledEmails } from "@calcom/emails";
diff --git a/apps/web/server/routers/viewer/bookings.tsx b/apps/web/server/routers/viewer/bookings.tsx
index daaeb41a77..ea19620ab8 100644
--- a/apps/web/server/routers/viewer/bookings.tsx
+++ b/apps/web/server/routers/viewer/bookings.tsx
@@ -1,8 +1,8 @@
 import { SchedulingType } from "@prisma/client";
-import dayjs from "dayjs";
 import { z } from "zod";
 
 import EventManager from "@calcom/core/EventManager";
+import dayjs from "@calcom/dayjs";
 import { sendLocationChangeEmails } from "@calcom/emails";
 import { parseRecurringEvent } from "@calcom/lib";
 import logger from "@calcom/lib/logger";
diff --git a/apps/web/server/routers/viewer/slots.tsx b/apps/web/server/routers/viewer/slots.tsx
index 946cabd448..c1d187d007 100644
--- a/apps/web/server/routers/viewer/slots.tsx
+++ b/apps/web/server/routers/viewer/slots.tsx
@@ -1,11 +1,9 @@
 import { SchedulingType } from "@prisma/client";
-import dayjs, { Dayjs } from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import { z } from "zod";
 
 import type { CurrentSeats } from "@calcom/core/getUserAvailability";
 import { getUserAvailability } from "@calcom/core/getUserAvailability";
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import { yyyymmdd } from "@calcom/lib/date-fns";
 import { availabilityUserSelect } from "@calcom/prisma";
 import { stringToDayjs } from "@calcom/prisma/zod-utils";
@@ -17,9 +15,6 @@ import getSlots from "@lib/slots";
 import { createRouter } from "@server/createRouter";
 import { TRPCError } from "@trpc/server";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 const getScheduleSchema = z
   .object({
     // startTime ISOString
diff --git a/apps/web/test/lib/getAvailabilityFromSchedule.test.ts b/apps/web/test/lib/getAvailabilityFromSchedule.test.ts
index 51dfe6e0ca..04cafdce9f 100644
--- a/apps/web/test/lib/getAvailabilityFromSchedule.test.ts
+++ b/apps/web/test/lib/getAvailabilityFromSchedule.test.ts
@@ -1,12 +1,11 @@
 import { expect, it } from "@jest/globals";
 import { Availability } from "@prisma/client";
-import dayjs from "dayjs";
-import customParseFormat from "dayjs/plugin/customParseFormat";
 import MockDate from "mockdate";
 
+import dayjs from "@calcom/dayjs";
+
 import { getAvailabilityFromSchedule } from "@lib/availability";
 
-dayjs.extend(customParseFormat);
 MockDate.set("2021-06-20T11:59:59Z");
 
 //parse "hh:mm-hh:mm" into <Availability> object
diff --git a/apps/web/test/lib/getWorkingHours.test.ts b/apps/web/test/lib/getWorkingHours.test.ts
index 626ff4b865..39e56db6f2 100644
--- a/apps/web/test/lib/getWorkingHours.test.ts
+++ b/apps/web/test/lib/getWorkingHours.test.ts
@@ -1,13 +1,9 @@
 import { expect, it } from "@jest/globals";
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import MockDate from "mockdate";
 
-import { getWorkingHours } from "@lib/availability";
+import dayjs from "@calcom/dayjs";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
+import { getWorkingHours } from "@lib/availability";
 
 MockDate.set("2021-06-20T11:59:59Z");
 
diff --git a/apps/web/test/lib/parseZone.test.ts b/apps/web/test/lib/parseZone.test.ts
index 9eda945655..d6fee7943a 100644
--- a/apps/web/test/lib/parseZone.test.ts
+++ b/apps/web/test/lib/parseZone.test.ts
@@ -1,10 +1,5 @@
-import dayjs from "dayjs";
-import utc from "dayjs/plugin/utc";
-
 import { parseZone } from "@lib/parseZone";
 
-dayjs.extend(utc);
-
 const EXPECTED_DATE_STRING = "2021-06-20T11:59:59+02:00";
 
 it("has the right utcOffset regardless of the local timeZone", async () => {
diff --git a/apps/web/test/lib/slots.test.ts b/apps/web/test/lib/slots.test.ts
index b0a34720f1..38285b7ba9 100644
--- a/apps/web/test/lib/slots.test.ts
+++ b/apps/web/test/lib/slots.test.ts
@@ -1,16 +1,12 @@
 import { expect, it } from "@jest/globals";
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import MockDate from "mockdate";
 
+import dayjs from "@calcom/dayjs";
+
 import { MINUTES_DAY_END, MINUTES_DAY_START } from "@lib/availability";
 import { getFilteredTimes } from "@lib/hooks/useSlots";
 import getSlots from "@lib/slots";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 MockDate.set("2021-06-20T11:59:59Z");
 
 it("can fit 24 hourly slots for an empty day", async () => {
diff --git a/packages/app-store/slackmessaging/lib/actions/createEvent.ts b/packages/app-store/slackmessaging/lib/actions/createEvent.ts
index 47456d0da2..a6f952daeb 100644
--- a/packages/app-store/slackmessaging/lib/actions/createEvent.ts
+++ b/packages/app-store/slackmessaging/lib/actions/createEvent.ts
@@ -1,5 +1,5 @@
 import { WebClient } from "@slack/web-api";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import { NextApiRequest, NextApiResponse } from "next";
 import { z } from "zod";
 
diff --git a/packages/app-store/slackmessaging/lib/showTodayMessage.ts b/packages/app-store/slackmessaging/lib/showTodayMessage.ts
index 3a62b83325..83517e7b9a 100644
--- a/packages/app-store/slackmessaging/lib/showTodayMessage.ts
+++ b/packages/app-store/slackmessaging/lib/showTodayMessage.ts
@@ -1,5 +1,5 @@
 import { BookingStatus } from "@prisma/client";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import { NextApiRequest, NextApiResponse } from "next";
 
 import prisma from "@calcom/prisma";
diff --git a/packages/app-store/slackmessaging/lib/slackVerify.ts b/packages/app-store/slackmessaging/lib/slackVerify.ts
index 52116d6ff9..f7915f5e4a 100644
--- a/packages/app-store/slackmessaging/lib/slackVerify.ts
+++ b/packages/app-store/slackmessaging/lib/slackVerify.ts
@@ -1,5 +1,5 @@
 import { createHmac } from "crypto";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import { NextApiRequest, NextApiResponse } from "next";
 import { stringify } from "querystring";
 
diff --git a/packages/app-store/slackmessaging/lib/views/ShowLinks.ts b/packages/app-store/slackmessaging/lib/views/ShowLinks.ts
index f4dce914fc..1d59c90bf4 100644
--- a/packages/app-store/slackmessaging/lib/views/ShowLinks.ts
+++ b/packages/app-store/slackmessaging/lib/views/ShowLinks.ts
@@ -1,4 +1,4 @@
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import { Blocks, Elements, Message } from "slack-block-builder";
 
 import { WEBAPP_URL } from "@calcom/lib/constants";
diff --git a/packages/app-store/slackmessaging/lib/views/TodayMessage.ts b/packages/app-store/slackmessaging/lib/views/TodayMessage.ts
index af304d0638..90c8f4101c 100644
--- a/packages/app-store/slackmessaging/lib/views/TodayMessage.ts
+++ b/packages/app-store/slackmessaging/lib/views/TodayMessage.ts
@@ -1,5 +1,5 @@
 import { Booking } from "@prisma/client";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import { Blocks, Elements, Message } from "slack-block-builder";
 
 import { WEBAPP_URL } from "@calcom/lib/constants";
diff --git a/packages/app-store/vital/api/webhook.ts b/packages/app-store/vital/api/webhook.ts
index 992b21b96a..4af3461f16 100644
--- a/packages/app-store/vital/api/webhook.ts
+++ b/packages/app-store/vital/api/webhook.ts
@@ -1,5 +1,5 @@
 import { BookingStatus, Prisma } from "@prisma/client";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import type { NextApiRequest, NextApiResponse } from "next";
 import queue from "queue";
 
diff --git a/packages/app-store/vital/lib/reschedule.ts b/packages/app-store/vital/lib/reschedule.ts
index be6e382349..efd306972b 100644
--- a/packages/app-store/vital/lib/reschedule.ts
+++ b/packages/app-store/vital/lib/reschedule.ts
@@ -1,5 +1,5 @@
 import { Booking, BookingReference, BookingStatus, User } from "@prisma/client";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import type { TFunction } from "next-i18next";
 
 import EventManager from "@calcom/core/EventManager";
diff --git a/packages/app-store/wipemycalother/components/confirmDialog.tsx b/packages/app-store/wipemycalother/components/confirmDialog.tsx
index 7be78bd983..fd586c5ca1 100644
--- a/packages/app-store/wipemycalother/components/confirmDialog.tsx
+++ b/packages/app-store/wipemycalother/components/confirmDialog.tsx
@@ -1,5 +1,5 @@
 import { ClockIcon, XIcon } from "@heroicons/react/outline";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import { Dispatch, SetStateAction } from "react";
 import { useState } from "react";
 import { useMutation } from "react-query";
diff --git a/packages/app-store/wipemycalother/lib/reschedule.ts b/packages/app-store/wipemycalother/lib/reschedule.ts
index b042a4a862..23cbc23384 100644
--- a/packages/app-store/wipemycalother/lib/reschedule.ts
+++ b/packages/app-store/wipemycalother/lib/reschedule.ts
@@ -1,5 +1,5 @@
 import { Booking, BookingReference, BookingStatus, User } from "@prisma/client";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import type { TFunction } from "next-i18next";
 
 import EventManager from "@calcom/core/EventManager";
diff --git a/packages/core/builders/CalendarEvent/builder.ts b/packages/core/builders/CalendarEvent/builder.ts
index 4469708043..304b489a7a 100644
--- a/packages/core/builders/CalendarEvent/builder.ts
+++ b/packages/core/builders/CalendarEvent/builder.ts
@@ -1,5 +1,5 @@
 import { Prisma, Booking } from "@prisma/client";
-import dayjs from "dayjs";
+import dayjs from "@calcom/dayjs";
 import short from "short-uuid";
 import { v5 as uuidv5 } from "uuid";
 
diff --git a/packages/core/getUserAvailability.ts b/packages/core/getUserAvailability.ts
index fa185fac44..8af6ac6a28 100644
--- a/packages/core/getUserAvailability.ts
+++ b/packages/core/getUserAvailability.ts
@@ -1,5 +1,5 @@
 import { Prisma } from "@prisma/client";
-import dayjs, { Dayjs } from "dayjs";
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import { z } from "zod";
 
 import { getWorkingHours } from "@calcom/lib/availability";
diff --git a/packages/core/package.json b/packages/core/package.json
index 712601fddc..ed5fdf1929 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -10,8 +10,8 @@
   },
   "dependencies": {
     "@calcom/app-store": "*",
+    "@calcom/dayjs": "*",
     "@calcom/lib": "*",
-    "dayjs": "^1.11.2",
     "ical.js": "^1.4.0",
     "ics": "^2.31.0",
     "uuid": "^8.3.2"
diff --git a/packages/dayjs/index.ts b/packages/dayjs/index.ts
new file mode 100644
index 0000000000..3ccfd77dea
--- /dev/null
+++ b/packages/dayjs/index.ts
@@ -0,0 +1,26 @@
+import dayjs from "dayjs";
+import dayjsBusinessTime from "dayjs-business-days2";
+import customParseFormat from "dayjs/plugin/customParseFormat";
+import isBetween from "dayjs/plugin/isBetween";
+import isToday from "dayjs/plugin/isToday";
+import localizedFormat from "dayjs/plugin/localizedFormat";
+import relativeTime from "dayjs/plugin/relativeTime";
+import timeZone from "dayjs/plugin/timezone";
+import toArray from "dayjs/plugin/toArray";
+import utc from "dayjs/plugin/utc";
+
+dayjs.extend(customParseFormat);
+dayjs.extend(dayjsBusinessTime);
+dayjs.extend(isBetween);
+dayjs.extend(isToday);
+dayjs.extend(localizedFormat);
+dayjs.extend(relativeTime);
+dayjs.extend(timeZone);
+dayjs.extend(toArray);
+dayjs.extend(utc);
+
+export type Dayjs = dayjs.Dayjs;
+
+export type { ConfigType } from "dayjs";
+
+export default dayjs;
diff --git a/packages/dayjs/package.json b/packages/dayjs/package.json
new file mode 100644
index 0000000000..621e93ac8c
--- /dev/null
+++ b/packages/dayjs/package.json
@@ -0,0 +1,10 @@
+{
+  "name": "@calcom/dayjs",
+  "description": "Cal.com's Day.js shared library",
+  "version": "1.0.0",
+  "main": "./index.ts",
+  "dependencies": {
+    "dayjs": "^1.11.2",
+    "dayjs-business-days2": "^1.1.0"
+  }
+}
diff --git a/packages/emails/package.json b/packages/emails/package.json
index b1e4d8b383..55b1716282 100644
--- a/packages/emails/package.json
+++ b/packages/emails/package.json
@@ -4,8 +4,8 @@
   "private": true,
   "scripts": {},
   "dependencies": {
+    "@calcom/dayjs": "*",
     "@calcom/lib": "*",
-    "dayjs": "^1.11.2",
     "next-i18next": "^11.0.0",
     "rrule": "^2.6.9"
   },
diff --git a/packages/emails/src/components/WhenInfo.tsx b/packages/emails/src/components/WhenInfo.tsx
index af680ab77b..dab3311014 100644
--- a/packages/emails/src/components/WhenInfo.tsx
+++ b/packages/emails/src/components/WhenInfo.tsx
@@ -1,16 +1,13 @@
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
 import { TFunction } from "next-i18next";
 import rrule from "rrule";
 
+import dayjs from "@calcom/dayjs";
 import { getEveryFreqFor } from "@calcom/lib/recurringStrings";
 import type { CalendarEvent } from "@calcom/types/Calendar";
 import { RecurringEvent } from "@calcom/types/Calendar";
 
 import { Info } from "./Info";
 
-dayjs.extend(timezone);
-
 function getRecurringWhen({ calEvent }: { calEvent: CalendarEvent }) {
   if (calEvent.recurringEvent) {
     const t = calEvent.attendees[0].language.translate;
diff --git a/packages/emails/src/templates/BaseScheduledEmail.tsx b/packages/emails/src/templates/BaseScheduledEmail.tsx
index 882e673921..1f66469a97 100644
--- a/packages/emails/src/templates/BaseScheduledEmail.tsx
+++ b/packages/emails/src/templates/BaseScheduledEmail.tsx
@@ -1,10 +1,6 @@
-import dayjs from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
 import type { TFunction } from "next-i18next";
 
+import dayjs from "@calcom/dayjs";
 import type { CalendarEvent, Person } from "@calcom/types/Calendar";
 
 import {
@@ -17,11 +13,6 @@ import {
   WhoInfo,
 } from "../components";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-dayjs.extend(toArray);
-
 export const BaseScheduledEmail = (
   props: {
     calEvent: CalendarEvent;
diff --git a/packages/emails/templates/_base-email.ts b/packages/emails/templates/_base-email.ts
index 760fa8121e..e9e79d1045 100644
--- a/packages/emails/templates/_base-email.ts
+++ b/packages/emails/templates/_base-email.ts
@@ -1,18 +1,9 @@
-import dayjs, { Dayjs } from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
 import nodemailer from "nodemailer";
 
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import { getErrorFromUnknown } from "@calcom/lib/errors";
 import { serverConfig } from "@calcom/lib/serverConfig";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-dayjs.extend(toArray);
-
 export default class BaseEmail {
   name = "";
 
diff --git a/packages/emails/templates/attendee-request-reschedule-email.ts b/packages/emails/templates/attendee-request-reschedule-email.ts
index 02c73a0a06..fbc842e434 100644
--- a/packages/emails/templates/attendee-request-reschedule-email.ts
+++ b/packages/emails/templates/attendee-request-reschedule-email.ts
@@ -1,21 +1,12 @@
-import dayjs from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
 import { createEvent, DateArray, Person } from "ics";
 
+import dayjs from "@calcom/dayjs";
 import { getCancelLink } from "@calcom/lib/CalEventParser";
 import { CalendarEvent } from "@calcom/types/Calendar";
 
 import { renderEmail } from "../";
 import OrganizerScheduledEmail from "./organizer-scheduled-email";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-dayjs.extend(toArray);
-
 export default class AttendeeRequestRescheduledEmail extends OrganizerScheduledEmail {
   private metadata: { rescheduleLink: string };
   constructor(calEvent: CalendarEvent, metadata: { rescheduleLink: string }) {
diff --git a/packages/emails/templates/attendee-scheduled-email.ts b/packages/emails/templates/attendee-scheduled-email.ts
index 226003b180..6d8d8cb8e1 100644
--- a/packages/emails/templates/attendee-scheduled-email.ts
+++ b/packages/emails/templates/attendee-scheduled-email.ts
@@ -1,23 +1,14 @@
-import dayjs from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
 import { createEvent, DateArray } from "ics";
 import { TFunction } from "next-i18next";
 import rrule from "rrule";
 
+import dayjs from "@calcom/dayjs";
 import { getRichDescription } from "@calcom/lib/CalEventParser";
 import type { CalendarEvent, Person } from "@calcom/types/Calendar";
 
 import { renderEmail } from "../";
 import BaseEmail from "./_base-email";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-dayjs.extend(toArray);
-
 export default class AttendeeScheduledEmail extends BaseEmail {
   calEvent: CalendarEvent;
   attendee: Person;
diff --git a/packages/emails/templates/broken-integration-email.ts b/packages/emails/templates/broken-integration-email.ts
index dc83db13be..96bcc90abc 100644
--- a/packages/emails/templates/broken-integration-email.ts
+++ b/packages/emails/templates/broken-integration-email.ts
@@ -1,11 +1,4 @@
-import dayjs from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
-import { createEvent, DateArray, Person } from "ics";
 import { TFunction } from "next-i18next";
-import rrule from "rrule";
 
 import { getRichDescription } from "@calcom/lib/CalEventParser";
 import type { CalendarEvent } from "@calcom/types/Calendar";
@@ -13,11 +6,6 @@ import type { CalendarEvent } from "@calcom/types/Calendar";
 import { renderEmail } from "..";
 import BaseEmail from "./_base-email";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-dayjs.extend(toArray);
-
 export default class BrokenIntegrationEmail extends BaseEmail {
   type: "calendar" | "video";
   calEvent: CalendarEvent;
diff --git a/packages/emails/templates/organizer-request-reschedule-email.ts b/packages/emails/templates/organizer-request-reschedule-email.ts
index fc69d04f9e..5de6e4698d 100644
--- a/packages/emails/templates/organizer-request-reschedule-email.ts
+++ b/packages/emails/templates/organizer-request-reschedule-email.ts
@@ -1,20 +1,11 @@
-import dayjs from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
 import { createEvent, DateArray, Person } from "ics";
 
+import dayjs from "@calcom/dayjs";
 import { CalendarEvent } from "@calcom/types/Calendar";
 
 import { renderEmail } from "../";
 import OrganizerScheduledEmail from "./organizer-scheduled-email";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-dayjs.extend(toArray);
-
 export default class OrganizerRequestRescheduledEmail extends OrganizerScheduledEmail {
   private metadata: { rescheduleLink: string };
   constructor(calEvent: CalendarEvent, metadata: { rescheduleLink: string }) {
diff --git a/packages/emails/templates/organizer-scheduled-email.ts b/packages/emails/templates/organizer-scheduled-email.ts
index 623451ee5c..e76501e209 100644
--- a/packages/emails/templates/organizer-scheduled-email.ts
+++ b/packages/emails/templates/organizer-scheduled-email.ts
@@ -1,23 +1,14 @@
-import dayjs from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import timezone from "dayjs/plugin/timezone";
-import toArray from "dayjs/plugin/toArray";
-import utc from "dayjs/plugin/utc";
 import { createEvent, DateArray, Person } from "ics";
 import { TFunction } from "next-i18next";
 import rrule from "rrule";
 
+import dayjs from "@calcom/dayjs";
 import { getRichDescription } from "@calcom/lib/CalEventParser";
 import type { CalendarEvent } from "@calcom/types/Calendar";
 
 import { renderEmail } from "../";
 import BaseEmail from "./_base-email";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(localizedFormat);
-dayjs.extend(toArray);
-
 export default class OrganizerScheduledEmail extends BaseEmail {
   calEvent: CalendarEvent;
   t: TFunction;
diff --git a/packages/lib/CalendarService.ts b/packages/lib/CalendarService.ts
index 964b228d5e..bba56a5595 100644
--- a/packages/lib/CalendarService.ts
+++ b/packages/lib/CalendarService.ts
@@ -1,9 +1,5 @@
 /// <reference path="../types/ical.d.ts"/>
 import { Credential, Prisma } from "@prisma/client";
-import dayjs from "dayjs";
-import isBetween from "dayjs/plugin/isBetween";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import ICAL from "ical.js";
 import { Attendee, createEvent, DateArray, DurationObject, Person } from "ics";
 import {
@@ -18,6 +14,7 @@ import {
 } from "tsdav";
 import { v4 as uuidv4 } from "uuid";
 
+import dayjs from "@calcom/dayjs";
 import type {
   Calendar,
   CalendarEvent,
@@ -35,10 +32,6 @@ import logger from "./logger";
 const TIMEZONE_FORMAT = "YYYY-MM-DDTHH:mm:ss[Z]";
 const DEFAULT_CALENDAR_TYPE = "caldav";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(isBetween);
-
 const CALENDSO_ENCRYPTION_KEY = process.env.CALENDSO_ENCRYPTION_KEY || "";
 
 const convertDate = (date: string): DateArray =>
diff --git a/packages/lib/availability.ts b/packages/lib/availability.ts
index 7c5ba630c5..6a472c54a4 100644
--- a/packages/lib/availability.ts
+++ b/packages/lib/availability.ts
@@ -1,16 +1,10 @@
 import type { Availability } from "@prisma/client";
-import dayjs, { ConfigType } from "dayjs";
-import customParseFormat from "dayjs/plugin/customParseFormat";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 
+import dayjs, { ConfigType } from "@calcom/dayjs";
 import type { Schedule, TimeRange, WorkingHours } from "@calcom/types/schedule";
 
 import { nameOfDay } from "./weekday";
 
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(customParseFormat);
 // sets the desired time in current date, needs to be current date for proper DST translation
 export const defaultDayRange: TimeRange = {
   start: new Date(new Date().setUTCHours(9, 0, 0, 0)),
diff --git a/packages/lib/date-fns/index.ts b/packages/lib/date-fns/index.ts
index 4fe08fb1af..4f59201147 100644
--- a/packages/lib/date-fns/index.ts
+++ b/packages/lib/date-fns/index.ts
@@ -1,4 +1,4 @@
-import dayjs, { Dayjs } from "dayjs";
+import dayjs, { Dayjs } from "@calcom/dayjs";
 
 // converts a date to 2022-04-25 for example.
 export const yyyymmdd = (date: Date | Dayjs) =>
diff --git a/packages/lib/package.json b/packages/lib/package.json
index 7ddbfa6188..a3e1014275 100644
--- a/packages/lib/package.json
+++ b/packages/lib/package.json
@@ -5,9 +5,9 @@
   "types": "./index.ts",
   "license": "MIT",
   "dependencies": {
+    "@calcom/dayjs": "*",
     "@prisma/client": "^3.15.2",
     "bcryptjs": "^2.4.3",
-    "dayjs": "^1.11.2",
     "ical.js": "^1.4.0",
     "ics": "^2.31.0",
     "next-i18next": "^11.0.0",
diff --git a/packages/prisma/seed.ts b/packages/prisma/seed.ts
index c4b0f08c5e..c9eb8436b9 100644
--- a/packages/prisma/seed.ts
+++ b/packages/prisma/seed.ts
@@ -1,7 +1,7 @@
 import { BookingStatus, MembershipRole, Prisma, UserPlan } from "@prisma/client";
-import dayjs from "dayjs";
 import { uuid } from "short-uuid";
 
+import dayjs from "@calcom/dayjs";
 import { hashPassword } from "@calcom/lib/auth";
 import { DEFAULT_SCHEDULE, getAvailabilityFromSchedule } from "@calcom/lib/availability";
 
diff --git a/packages/prisma/zod-utils.ts b/packages/prisma/zod-utils.ts
index 5de576caaa..7b25c2bfe5 100644
--- a/packages/prisma/zod-utils.ts
+++ b/packages/prisma/zod-utils.ts
@@ -1,15 +1,9 @@
-import dayjs from "dayjs";
-import timezone from "dayjs/plugin/timezone";
-import utc from "dayjs/plugin/utc";
 import { z } from "zod";
 
 import { LocationType } from "@calcom/core/location";
+import dayjs from "@calcom/dayjs";
 import { slugify } from "@calcom/lib/slugify";
 
-//
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
 // Let's not import 118kb just to get an enum
 export enum Frequency {
   YEARLY = 0,
diff --git a/packages/stripe/downgrade.ts b/packages/stripe/downgrade.ts
index 91e8ec4afd..71e309fefe 100755
--- a/packages/stripe/downgrade.ts
+++ b/packages/stripe/downgrade.ts
@@ -1,8 +1,8 @@
 #!/usr/bin/env ts-node
 // To run this script: `yarn downgrade 2>&1 | tee result.log`
 import { Prisma, UserPlan } from "@prisma/client";
-import dayjs from "dayjs";
 
+import dayjs from "@calcom/dayjs";
 import { TRIAL_LIMIT_DAYS } from "@calcom/lib/constants";
 import prisma from "@calcom/prisma";
 import stripe from "@calcom/stripe/server";
diff --git a/packages/stripe/package.json b/packages/stripe/package.json
index c19c309a77..e302ee925c 100644
--- a/packages/stripe/package.json
+++ b/packages/stripe/package.json
@@ -11,11 +11,11 @@
     "ts-node": "^10.6.0"
   },
   "dependencies": {
+    "@calcom/dayjs": "*",
     "@calcom/ee": "*",
     "@calcom/lib": "*",
     "@stripe/react-stripe-js": "^1.8.0",
     "@stripe/stripe-js": "^1.29.0",
-    "dayjs": "^1.11.2",
     "stripe": "^9.1.0"
   },
   "main": "index.ts",
diff --git a/packages/ui/booker/DatePicker.tsx b/packages/ui/booker/DatePicker.tsx
index 0a691ecc6d..ad7f555bd7 100644
--- a/packages/ui/booker/DatePicker.tsx
+++ b/packages/ui/booker/DatePicker.tsx
@@ -1,14 +1,11 @@
 import { ChevronLeftIcon, ChevronRightIcon } from "@heroicons/react/solid";
-import dayjs, { Dayjs } from "dayjs";
-import isToday from "dayjs/plugin/isToday";
 
+import dayjs, { Dayjs } from "@calcom/dayjs";
 import classNames from "@calcom/lib/classNames";
 import { daysInMonth, yyyymmdd } from "@calcom/lib/date-fns";
 import { weekdayNames } from "@calcom/lib/weekday";
 import { SkeletonText } from "@calcom/ui/skeleton";
 
-dayjs.extend(isToday);
-
 export type DatePickerProps = {
   /** which day of the week to render the calendar. Usually Sunday (=0) or Monday (=1) - default: Sunday */
   weekStart?: 0 | 1 | 2 | 3 | 4 | 5 | 6;