diff --git a/package.json b/package.json
index e3379f91..56252cae 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,6 @@
     "@vanilla-extract/css": "^1.15.1",
     "@vanilla-extract/css-utils": "^0.1.4",
     "axios": "^1.6.8",
-    "date-fns": "^3.6.0",
     "firebase": "^10.12.4",
     "lottie-react": "^2.4.0",
     "nanoid": "^5.0.7",
@@ -86,4 +85,4 @@
     "vite": "^5.2.0",
     "vitest": "^2.0.5"
   }
-}
\ No newline at end of file
+}
diff --git a/src/common/apis/tokenInstance.ts b/src/common/apis/tokenInstance.ts
index 2b1e6c16..6eb9ce5e 100644
--- a/src/common/apis/tokenInstance.ts
+++ b/src/common/apis/tokenInstance.ts
@@ -1,5 +1,5 @@
+import { isBefore } from '@utils/dateFormatter';
 import axios from 'axios';
-import { isBefore } from 'date-fns/isBefore';
 
 const tokenInstance = axios.create({
   baseURL: import.meta.env.VITE_BASE_URL,
diff --git a/src/common/components/Input/components/Timer/index.tsx b/src/common/components/Input/components/Timer/index.tsx
index 2fa854f7..0eb3ee06 100644
--- a/src/common/components/Input/components/Timer/index.tsx
+++ b/src/common/components/Input/components/Timer/index.tsx
@@ -1,4 +1,3 @@
-import { differenceInSeconds } from 'date-fns/differenceInSeconds';
 import { useEffect, useState } from 'react';
 
 import { useDeviceType } from 'contexts/DeviceTypeProvider';
@@ -6,6 +5,7 @@ import { useDeviceType } from 'contexts/DeviceTypeProvider';
 import { timerVar } from './style.css';
 import { TimerProps } from './types';
 import formatTimer from './utils/formatTimer';
+import { differenceInSeconds } from '@utils/dateFormatter';
 
 const INITIAL_TIME = 300;
 
diff --git a/src/common/hooks/useDate.tsx b/src/common/hooks/useDate.tsx
index 026da42b..489a5187 100644
--- a/src/common/hooks/useDate.tsx
+++ b/src/common/hooks/useDate.tsx
@@ -1,10 +1,9 @@
-import { isAfter } from 'date-fns/isAfter';
-import { isBefore } from 'date-fns/isBefore';
 import { useEffect } from 'react';
 
 import { useRecruitingInfo } from 'contexts/RecruitingInfoProvider';
 
 import useGetRecruitingInfo from './useGetRecruitingInfo';
+import { isAfter, isBefore } from '@utils/dateFormatter';
 
 const useDate = () => {
   const { handleSaveRecruitingInfo } = useRecruitingInfo();
diff --git a/src/common/utils/dateFormatter.ts b/src/common/utils/dateFormatter.ts
new file mode 100644
index 00000000..d8dd135e
--- /dev/null
+++ b/src/common/utils/dateFormatter.ts
@@ -0,0 +1,49 @@
+const toDate = (date: Date | string): Date => {
+  const newDate = typeof date === 'string' ? new Date(date) : date;
+  if (isNaN(newDate.getTime())) {
+    // TODO : 배포 시 주석 해제
+    // throw new Error('변환할 수 없는 날짜입니다.');
+  }
+  return newDate;
+};
+
+export const isBefore = (date: Date | string, dateToCompare: Date | string): boolean => {
+  return toDate(date).getTime() < toDate(dateToCompare).getTime();
+};
+
+export const isAfter = (date: Date | string, dateToCompare: Date | string): boolean => {
+  return toDate(date).getTime() > toDate(dateToCompare).getTime();
+};
+
+export const differenceInSeconds = (laterDate: Date | string, earlierDate: Date | string): number => {
+  return Math.floor((toDate(laterDate).getTime() - toDate(earlierDate).getTime()) / 1000);
+};
+
+export const subMinutes = (date: Date | string, amount: number): Date => {
+  const newDate = new Date();
+  newDate.setTime(toDate(date).getTime() - amount * 60 * 1000);
+  return newDate;
+};
+
+export const _subMinutes = (date: Date | string, amount: number): Date => {
+  date = toDate(date);
+  date.setTime(date.getTime() - amount * 60 * 1000);
+  return date;
+};
+
+export const format = (date: Date | string, formatStr: string): string => {
+  date = toDate(date);
+  const days = ['일', '월', '화', '수', '목', '금', '토'];
+  const formatter: { [key: string]: string } = {
+    M: (date.getMonth() + 1).toString(),
+    dd: date.getDate().toString().padStart(2, '0'),
+    E: days[date.getDay()],
+    EEEE: days[date.getDay()] + '요일',
+    aaa: date.getHours() < 12 ? '오전' : '오후',
+    HH: date.getHours().toString().padStart(2, '0'),
+    hh: (date.getHours() % 12 || 12).toString().padStart(2, '0'),
+    mm: date.getMinutes().toString().padStart(2, '0'),
+  };
+
+  return formatStr.replace(/M|dd|E|EEE|aaa|HH|hh|mm/g, (substr) => formatter[substr]);
+};
diff --git a/src/views/ApplyPage/components/ApplyInfo/index.tsx b/src/views/ApplyPage/components/ApplyInfo/index.tsx
index 7bbec85a..305905d2 100644
--- a/src/views/ApplyPage/components/ApplyInfo/index.tsx
+++ b/src/views/ApplyPage/components/ApplyInfo/index.tsx
@@ -1,6 +1,3 @@
-import { format } from 'date-fns/format';
-import { ko } from 'date-fns/locale/ko';
-import { subMinutes } from 'date-fns/subMinutes';
 import { memo } from 'react';
 
 import Callout from '@components/Callout';
@@ -18,6 +15,7 @@ import {
   infoWrapperVar,
 } from './style.css';
 import { APPLY_INFO } from '../../constant';
+import { format, subMinutes } from '@utils/dateFormatter';
 
 const ApplyInfo = memo(({ isReview = false }: { isReview?: boolean }) => {
   const { deviceType } = useDeviceType();
@@ -34,22 +32,15 @@ const ApplyInfo = memo(({ isReview = false }: { isReview?: boolean }) => {
 
   if (!applicationStart) return;
 
-  const formattedApplicationStart = format(new Date(applicationStart || ''), 'M월 dd일 (E) aaa HH시 mm분', {
-    locale: ko,
-  });
-  const formattedApplicationEnd = format(subMinutes(new Date(applicationEnd || ''), 1), 'M월 dd일 (E) aaa HH시 mm분', {
-    locale: ko,
-  });
+  const formattedApplicationStart = format(new Date(applicationStart || ''), 'M월 dd일 (E) aaa HH시 mm분');
+  const formattedApplicationEnd = format(subMinutes(new Date(applicationEnd || ''), 1), 'M월 dd일 (E) aaa HH시 mm분');
   const formattedApplicationConfirmStart = format(
     new Date(applicationPassConfirmStart || ''),
     'M월 dd일 (E) aaa HH시 mm분',
-    {
-      locale: ko,
-    },
   );
-  const formattedInterviewStart = format(new Date(interviewStart || ''), 'M월 dd일 (E)', { locale: ko });
-  const formattedInterviewEnd = format(new Date(interviewEnd || ''), 'M월 dd일 (E)', { locale: ko });
-  const formattedFinalPassConfirmStart = format(new Date(finalPassConfirmStart || ''), 'M월 dd일 (E)', { locale: ko });
+  const formattedInterviewStart = format(new Date(interviewStart || ''), 'M월 dd일 (E)');
+  const formattedInterviewEnd = format(new Date(interviewEnd || ''), 'M월 dd일 (E)');
+  const formattedFinalPassConfirmStart = format(new Date(finalPassConfirmStart || ''), 'M월 dd일 (E)');
 
   return (
     <section className={infoContainerVar[deviceType]}>
diff --git a/src/views/ResultPage/components/FinalResult.tsx b/src/views/ResultPage/components/FinalResult.tsx
index 0424de81..c73947b0 100644
--- a/src/views/ResultPage/components/FinalResult.tsx
+++ b/src/views/ResultPage/components/FinalResult.tsx
@@ -1,6 +1,4 @@
 import { track } from '@amplitude/analytics-browser';
-import { format } from 'date-fns/format';
-import { ko } from 'date-fns/locale/ko';
 import { useEffect } from 'react';
 
 import Title from '@components/Title';
@@ -23,6 +21,7 @@ import IconMakersLogo from '../assets/IconMakersLogo';
 import imgSoptLogo from '../assets/imgSoptLogo.png';
 import imgSoptLogoWebp from '../assets/imgSoptLogo.webp';
 import useGetFinalResult from '../hooks/useGetFinalResult';
+import { format } from '@utils/dateFormatter';
 
 const Content = ({ pass }: { pass?: boolean }) => {
   const { deviceType } = useDeviceType();
@@ -33,9 +32,7 @@ const Content = ({ pass }: { pass?: boolean }) => {
   if (!name) return;
 
   const finalDate = new Date(finalPassConfirmStart || '');
-  const formattedFinalPassConfirmStart = format(finalDate, 'M월 dd일 EEEE', {
-    locale: ko,
-  });
+  const formattedFinalPassConfirmStart = format(finalDate, 'M월 dd일 EEEE');
 
   const SOPT_NAME = isMakers ? `SOPT ${soptName}` : soptName;
   return (
diff --git a/src/views/ResultPage/components/ScreeningResult.tsx b/src/views/ResultPage/components/ScreeningResult.tsx
index fdbeab74..6ab38fbb 100644
--- a/src/views/ResultPage/components/ScreeningResult.tsx
+++ b/src/views/ResultPage/components/ScreeningResult.tsx
@@ -1,6 +1,4 @@
 import { track } from '@amplitude/analytics-browser';
-import { format } from 'date-fns/format';
-import { ko } from 'date-fns/locale/ko';
 import { useEffect } from 'react';
 
 import Title from '@components/Title';
@@ -23,6 +21,7 @@ import IconMakersLogo from '../assets/IconMakersLogo';
 import imgSoptLogo from '../assets/imgSoptLogo.png';
 import imgSoptLogoWebp from '../assets/imgSoptLogo.webp';
 import useGetScreeningResult from '../hooks/useGetScreeningResult';
+import { format } from '@utils/dateFormatter';
 
 const Content = ({ pass }: { pass?: boolean }) => {
   const { deviceType } = useDeviceType();
@@ -36,14 +35,10 @@ const Content = ({ pass }: { pass?: boolean }) => {
   const applicationPassConfirmNextDay = new Date(applicationDate);
   applicationPassConfirmNextDay.setDate(applicationDate.getDate() + 1);
 
-  const formattedInterviewStart = format(new Date(interviewStart || ''), 'M월 dd일', { locale: ko });
-  const formattedInterviewEnd = format(new Date(interviewEnd || ''), 'M월 dd일', { locale: ko });
-  const formattedApplicationPassConfirmStart = format(applicationDate, 'M월 dd일 EEEE', {
-    locale: ko,
-  });
-  const formattedApplicationPassConfirmNextDay = format(new Date(applicationPassConfirmNextDay || ''), 'M월 dd일', {
-    locale: ko,
-  });
+  const formattedInterviewStart = format(new Date(interviewStart || ''), 'M월 dd일');
+  const formattedInterviewEnd = format(new Date(interviewEnd || ''), 'M월 dd일');
+  const formattedApplicationPassConfirmStart = format(applicationDate, 'M월 dd일 EEEE');
+  const formattedApplicationPassConfirmNextDay = format(new Date(applicationPassConfirmNextDay || ''), 'M월 dd일');
 
   const SOPT_NAME = isMakers ? `SOPT ${soptName}` : soptName;
   return (
diff --git a/yarn.lock b/yarn.lock
index 278562a2..784d0191 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2514,11 +2514,6 @@ data-view-byte-offset@^1.0.0:
     es-errors "^1.3.0"
     is-data-view "^1.0.1"
 
-date-fns@^3.6.0:
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-3.6.0.tgz#f20ca4fe94f8b754951b24240676e8618c0206bf"
-  integrity sha512-fRHTG8g/Gif+kSh50gaGEdToemgfj74aRX3swtiouboip5JDLAyDE9F11nHMIcvOaXeOC6D7SpNhi7uFyB7Uww==
-
 debug@4, debug@^4.3.5:
   version "4.3.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.6.tgz#2ab2c38fbaffebf8aa95fdfe6d88438c7a13c52b"