diff --git a/src/components/admin/applicants/ApplicantsDetailList.tsx b/src/components/admin/applicants/ApplicantsDetailList.tsx
index 8048e7a7..d824a5d5 100644
--- a/src/components/admin/applicants/ApplicantsDetailList.tsx
+++ b/src/components/admin/applicants/ApplicantsDetailList.tsx
@@ -5,6 +5,7 @@ import checkbox from '../../../assets/icons/components/SeminarApply/checkbox.svg
 // 지원자 데이터 타입
 interface Applicant {
   id: number;           // 각 지원자의 고유 ID (React의 key로 사용)
+  appliedAt: string;    // 신청시각
   seminarName: string;  // 세미나명
   studentId: string;    // API 요청용 studentId (ApplicantData의 studentId)
   studentNum: string;   // 학번 (표시용)
@@ -44,10 +45,10 @@ const ApplicantsDetailList: React.FC<ApplicantsDetailListProps> = ({
   const cellStyle = "border border-grey-400 px-5 py-3 text-center body-1-semibold text-white ";
 
   // 헤더 목록
-  const headers = ['세미나명', '학번', '학과', '학년', '이름', '연락처', '이메일', '온/오프라인 참여 여부', '이번 세미나를 알게 된 경로', '출석'];
+  const headers = ['신청시각', '세미나명', '학번', '학과', '학년', '이름', '연락처', '이메일', '온/오프라인 참여 여부', '이번 세미나를 알게 된 경로', '출석'];
 
   // 데이터 키 목록 (applicant 객체의 속성명과 매칭)
-  const dataKeys = ['seminarName', 'studentNum', 'department', 'grade', 'name', 'contact', 'email', 'attendanceType', 'referralSource'] as const;
+  const dataKeys = ['appliedAt', 'seminarName', 'studentNum', 'department', 'grade', 'name', 'contact', 'email', 'attendanceType', 'referralSource'] as const;
 
   // 출석 토글 함수
   const toggleAttendance = async (id: number, studentId: string) => {
diff --git a/src/pages/admin/seminar-manage/applicants/Detail.tsx b/src/pages/admin/seminar-manage/applicants/Detail.tsx
index 96fa780f..586a7ac3 100644
--- a/src/pages/admin/seminar-manage/applicants/Detail.tsx
+++ b/src/pages/admin/seminar-manage/applicants/Detail.tsx
@@ -9,6 +9,22 @@ const Detail = () => {
   const { data: applicantsData } = useSeminarApplicantsDetail(id!);
   const { mutate: updateAttendance } = useUpdateAttendanceCheck(id!);
 
+  // 날짜 포맷 함수 (YYYY. M. DD 오전/오후 H:MM:SS)
+  const formatDateKorean = (dateString: string): string => {
+    const date = new Date(dateString);
+    const year = date.getFullYear();
+    const month = date.getMonth() + 1;
+    const day = date.getDate();
+    const hours = date.getHours();
+    const minutes = date.getMinutes();
+    const seconds = date.getSeconds();
+
+    const period = hours >= 12 ? '오후' : '오전';
+    const hour12 = hours % 12 || 12;
+
+    return `${year}. ${month}. ${day} ${period} ${hour12}:${String(minutes).padStart(2, '0')}:${String(seconds).padStart(2, '0')}`;
+  };
+
   // inflowPath 매핑 함수
   const getInflowPathLabel = (inflowPath: string) => {
     const inflowPathMap: { [key: string]: string } = {
@@ -49,6 +65,7 @@ const Detail = () => {
   const applicants =
     applicantsData?.result?.students?.map((applicant, index) => ({
       id: index + 1,
+      appliedAt: formatDateKorean(applicant.appliedAt),
       seminarName: applicant.topic,
       studentId: applicant.studentId,
       studentNum: applicant.studentNum,
@@ -72,6 +89,7 @@ const Detail = () => {
 
   // 엑셀 다운로드용 헤더 매핑
   const excelHeaders = {
+    appliedAt: '신청시각',
     seminarName: '세미나명',
     studentNum: '학번',
     department: '학과',