diff --git a/src/app/[lng]/mypage/MypageTable.tsx b/src/app/[lng]/mypage/MypageTable.tsx
index b0b6699d..7da5cd81 100644
--- a/src/app/[lng]/mypage/MypageTable.tsx
+++ b/src/app/[lng]/mypage/MypageTable.tsx
@@ -64,7 +64,7 @@ const MypageTable = async ({
               </div>
               <div className="items-end justify-end">
                 <div className="text-regular m-5 text-secondaryText">
-                  {dayjs(articleObj.createdAt).format('YYYY-MM-DD')}
+                  {dayjs(articleObj.createdAt).tz().format('YYYY-MM-DD')}
                 </div>
               </div>
             </Link>
diff --git a/src/app/[lng]/notice/[id]/AdditionalNotices.tsx b/src/app/[lng]/notice/[id]/AdditionalNotices.tsx
index 20266f64..4bd61a9c 100644
--- a/src/app/[lng]/notice/[id]/AdditionalNotices.tsx
+++ b/src/app/[lng]/notice/[id]/AdditionalNotices.tsx
@@ -31,26 +31,29 @@ const AdditionalNotices = async ({
                 {t('zabo.additionalNotices.title')}
               </p>
               <p className="font-regular ml-2 text-base text-secondaryText">
-                {dayjs(content.createdAt).format('LLL')}
+                {dayjs(content.createdAt).tz().format('LLL')}
               </p>
             </div>
 
             <div className="ml-8">
               {index > 0 &&
-                dayjs(content.deadline).format('LLL') !==
-                  dayjs(localeContents[index - 1].deadline).format('LLL') && (
+                !dayjs(content.deadline).isSame(
+                  dayjs(localeContents[index - 1].deadline),
+                ) && (
                   <div className="flex items-center gap-3">
                     <p className={'text-base font-bold'}>
                       {t('zabo.additionalNotices.deadlineChanged')}
                     </p>
                     <p className={'text-base font-medium text-secondaryText'}>
-                      {dayjs(localeContents[index - 1].deadline).format('LLL')}
+                      {dayjs(localeContents[index - 1].deadline)
+                        .tz()
+                        .format('LLL')}
                     </p>
 
                     <p>▶</p>
 
                     <p className={'text-base font-medium'}>
-                      {dayjs(content.deadline).format('LLL')}
+                      {dayjs(content.deadline).tz().format('LLL')}
                     </p>
                   </div>
                 )}
diff --git a/src/app/[lng]/notice/[id]/NoticeInfo.tsx b/src/app/[lng]/notice/[id]/NoticeInfo.tsx
index 1d52fccd..1b3e5c4e 100644
--- a/src/app/[lng]/notice/[id]/NoticeInfo.tsx
+++ b/src/app/[lng]/notice/[id]/NoticeInfo.tsx
@@ -27,7 +27,7 @@ const NoticeInfo = async ({
     <div>
       {deadline && (
         <>
-          <Deadline deadline={dayjs(deadline)} t={t} />
+          <Deadline deadline={dayjs(deadline).tz()} t={t} />
           <div className="h-2" />
         </>
       )}
@@ -79,7 +79,7 @@ const Metadata = ({
     <div className="h-5 w-0.5 bg-text dark:bg-secondaryText md:h-7" />
     <div className="flex gap-4 font-normal text-secondaryText">
       <Trans t={t} i18nKey="zabo.createdAt">
-        createdAt {{ createdAt: createdAt.format('LLL') }}
+        createdAt {{ createdAt: createdAt.tz().format('LLL') }}
       </Trans>
       {' · '}
       <Trans t={t} i18nKey="zabo.views">
diff --git a/src/app/components/molecules/DDay/DDay.tsx b/src/app/components/molecules/DDay/DDay.tsx
index ff2a5726..de03fbfe 100644
--- a/src/app/components/molecules/DDay/DDay.tsx
+++ b/src/app/components/molecules/DDay/DDay.tsx
@@ -16,7 +16,7 @@ const DDay = ({ deadline, t, className }: PropsWithT<DDayProps>) => (
     ].join(' ')}
   >
     <div className="text-sm font-bold text-white md:text-lg">
-      {ddayFormatted(dayjs(deadline), t)}
+      {ddayFormatted(dayjs(deadline).tz(), t)}
     </div>
   </div>
 );
diff --git a/src/app/components/organisms/Zabo/ImageZabo.tsx b/src/app/components/organisms/Zabo/ImageZabo.tsx
index 5a237f3f..bcbb9fea 100644
--- a/src/app/components/organisms/Zabo/ImageZabo.tsx
+++ b/src/app/components/organisms/Zabo/ImageZabo.tsx
@@ -3,7 +3,6 @@ import { Trans } from 'react-i18next';
 
 import ZaboImage from '@/app/components/molecules/ZaboImage';
 import { PropsWithLng } from '@/app/i18next';
-import { useTranslation } from '@/app/i18next/client';
 import getLocaleContents from '@/utils/getLocaleContents';
 
 import DDay from '../../molecules/DDay';
@@ -21,8 +20,6 @@ const ImageZabo = <Origin extends ZaboOrigin>({
   height,
   lng,
 }: ImageZaboProps<Origin> & PropsWithLng) => {
-  const { i18n } = useTranslation(lng);
-
   const localContents = getLocaleContents(contents, lng);
 
   const deadline = rawDeadline ? dayjs(rawDeadline) : undefined;
@@ -59,7 +56,7 @@ const ImageZabo = <Origin extends ZaboOrigin>({
         </div>
         <div className="flex text-sm font-medium text-secondaryText">
           <Trans t={t} i18nKey="zabo.dateView">
-            {{ date: dayjs(createdAt).format('L') }}
+            {{ date: dayjs(createdAt).tz().format('L') }}
             <strong className="font-bold"> · {{ views }}</strong>
           </Trans>
         </div>
diff --git a/src/app/components/organisms/Zabo/TextZabo.tsx b/src/app/components/organisms/Zabo/TextZabo.tsx
index f79ef935..a7bb6b70 100644
--- a/src/app/components/organisms/Zabo/TextZabo.tsx
+++ b/src/app/components/organisms/Zabo/TextZabo.tsx
@@ -2,7 +2,6 @@ import dayjs from 'dayjs';
 import { Trans } from 'react-i18next';
 
 import { PropsWithLng } from '@/app/i18next';
-import { useTranslation } from '@/app/i18next/client';
 import getLocaleContents from '@/utils/getLocaleContents';
 
 import DDay from '../../molecules/DDay';
@@ -66,7 +65,7 @@ const TextZabo = <Origin extends ZaboOrigin>({
       <div className="flex flex-col gap-2.5">
         <div className="flex text-sm font-medium text-secondaryText">
           <Trans t={t} i18nKey="zabo.dateView">
-            {{ date: dayjs(createdAt).format('L') }}
+            {{ date: dayjs(createdAt).tz().format('L') }}
             <strong className="font-bold"> · {{ views }}</strong>
           </Trans>
         </div>
diff --git a/src/app/components/templates/ResultZabo/ResultImageZabo.tsx b/src/app/components/templates/ResultZabo/ResultImageZabo.tsx
index a3ca146a..47dc596c 100644
--- a/src/app/components/templates/ResultZabo/ResultImageZabo.tsx
+++ b/src/app/components/templates/ResultZabo/ResultImageZabo.tsx
@@ -15,10 +15,10 @@ import { ResultImageZaboProps } from './ResultZabo';
 
 const ResultImageZabo = async ({
   contents,
-  createdAt: rawCreatedAt,
+  createdAt,
   views,
   author,
-  currentDeadline: rawDeadline,
+  currentDeadline,
   tags,
   searchQuery,
 
@@ -30,8 +30,6 @@ const ResultImageZabo = async ({
 
   const localeContents = getLocaleContents(contents, lng);
 
-  const deadline = rawDeadline ? dayjs(rawDeadline) : undefined;
-  const createdAt = rawCreatedAt ? dayjs(rawCreatedAt) : undefined;
   const title = localeContents[0].title;
 
   return (
@@ -51,10 +49,10 @@ const ResultImageZabo = async ({
           }}
         >
           <div className="align-start flex flex-col">
-            {deadline && (
+            {currentDeadline && (
               <p className={'text-sm font-medium md:text-xl'}>
                 <Trans t={t} i18nKey="zabo.dueAt">
-                  {{ dueAt: dayjs(deadline).format('LLL') }}
+                  {{ dueAt: dayjs(currentDeadline).tz().format('LLL') }}
                 </Trans>
               </p>
             )}
@@ -88,7 +86,7 @@ const ResultImageZabo = async ({
           <div className="flex gap-0.5">
             <div className="flex text-sm font-medium text-secondaryText">
               <Trans t={t} i18nKey="zabo.dateView">
-                {{ date: dayjs(createdAt).format('L') }}
+                {{ date: dayjs(createdAt).tz().format('L') }}
                 <strong className="font-bold"> · {{ views }}</strong>
               </Trans>
             </div>
diff --git a/src/app/components/templates/ResultZabo/ResultTextZabo.tsx b/src/app/components/templates/ResultZabo/ResultTextZabo.tsx
index 2153195e..7519d913 100644
--- a/src/app/components/templates/ResultZabo/ResultTextZabo.tsx
+++ b/src/app/components/templates/ResultZabo/ResultTextZabo.tsx
@@ -17,15 +17,13 @@ const ResultTextZabo = async ({
   createdAt,
   views,
   author,
-  currentDeadline: rawDeadline,
+  currentDeadline,
   tags,
   searchQuery,
 
   id,
   lng,
 }: ResultZaboProps) => {
-  const deadline = rawDeadline ? dayjs(rawDeadline) : undefined;
-
   const { t } = await createTranslation(lng);
   const localeContents = getLocaleContents(contents, lng);
 
@@ -41,10 +39,10 @@ const ResultTextZabo = async ({
         }
       >
         <div className="flex flex-col items-start">
-          {deadline && (
+          {currentDeadline && (
             <div className="mb-1.5 text-lg font-medium">
               <Trans t={t} i18nKey="zabo.dueAt">
-                {{ dueAt: dayjs(deadline).format('LLL') }}
+                {{ dueAt: dayjs(currentDeadline).tz().format('LLL') }}
               </Trans>
             </div>
           )}
@@ -81,7 +79,7 @@ const ResultTextZabo = async ({
           <div className="flex gap-0.5">
             <div className="flex text-sm font-medium text-secondaryText">
               <Trans t={t} i18nKey="zabo.dateView">
-                {{ date: dayjs(createdAt).format('L') }}
+                {{ date: dayjs(createdAt).tz().format('L') }}
                 <strong className="font-bold"> · {{ views }}</strong>
               </Trans>
             </div>