diff --git a/src/components/survey-sale/detail/DataTable.tsx b/src/components/survey-sale/detail/DataTable.tsx
index d293a7e..7dfd5b1 100644
--- a/src/components/survey-sale/detail/DataTable.tsx
+++ b/src/components/survey-sale/detail/DataTable.tsx
@@ -2,6 +2,7 @@
 
 import { SurveyBasicInfo } from '@/types/Survey'
 import { useSurvey } from '@/hooks/useSurvey'
+import { formatDateTime } from '@/utils/common-utils'
 
 export default function DataTable({ surveyDetail }: { surveyDetail: SurveyBasicInfo }) {
   /** 제출 상태 처리 */
@@ -36,18 +37,18 @@ export default function DataTable({ surveyDetail }: { surveyDetail: SurveyBasicI
             </tr>
             <tr>
               <th>登録日</th>
-              <td>{surveyDetail?.regDt ? new Date(surveyDetail.regDt).toLocaleString() : ''}</td>
+              <td>{formatDateTime(surveyDetail?.regDt)}</td>
             </tr>
             <tr>
               <th>更新日時</th>
-              <td>{surveyDetail?.uptDt ? new Date(surveyDetail.uptDt).toLocaleString() : ''}</td>
+              <td>{formatDateTime(surveyDetail?.uptDt)}</td>
             </tr>
             <tr>
               <th>提出可否</th>
               <td>
                 {surveyDetail?.submissionStatus && surveyDetail?.submissionDate ? (
                   <>
-                    <div>{new Date(surveyDetail.submissionDate).toLocaleString()}</div>
+                    <div>{formatDateTime(surveyDetail.submissionDate)}</div>
                     {submitStatus()}
                   </>
                 ) : (
diff --git a/src/components/survey-sale/list/ListTable.tsx b/src/components/survey-sale/list/ListTable.tsx
index b99c864..8e1de6b 100644
--- a/src/components/survey-sale/list/ListTable.tsx
+++ b/src/components/survey-sale/list/ListTable.tsx
@@ -8,6 +8,7 @@ import SearchForm from './SearchForm'
 import { useSurveyFilterStore } from '@/store/surveyFilterStore'
 import { useSessionStore } from '@/store/session'
 import type { SurveyBasicInfo } from '@/types/Survey'
+import { formatDateTime } from '@/utils/common-utils'
 
 export default function ListTable() {
   const router = useRouter()
@@ -74,7 +75,7 @@ export default function ListTable() {
                   <div className="sale-item-customer">{survey.customerName === null ? '-' : survey.customerName}</div>
                   <div className="sale-item-update-bx">
                     <div className="sale-item-name">{survey.representative}</div>
-                    <div className="sale-item-update">{new Date(survey.uptDt).toLocaleString()}</div>
+                    <div className="sale-item-update">{formatDateTime(survey.uptDt)}</div>
                   </div>
                 </div>
               </li>
diff --git a/src/utils/common-utils.js b/src/utils/common-utils.js
index fdef02e..7c2b359 100644
--- a/src/utils/common-utils.js
+++ b/src/utils/common-utils.js
@@ -233,3 +233,24 @@ export const convertToCamelCase = (obj) => {
 
   return obj
 }
+
+/**
+ * 날짜 형식 변환
+ * @param {Date | string} date 날짜 데이터
+ * @returns {string} 포맷팅된 날짜 문자열 (YYYY.MM.DD HH:MM:SS)
+ */
+export const formatDateTime = (date) => {
+  if (date === '' || date === null || date === undefined) return ''
+
+  return new Date(date)
+    .toLocaleString(undefined, {
+      year: 'numeric',
+      month: 'numeric',
+      day: 'numeric',
+      hour: '2-digit',
+      minute: '2-digit',
+      second: '2-digit',
+      hour12: false,
+    })
+    .replace(/\//g, '.')
+}