diff --git a/components/board/calendar/calendar.table.jsx b/components/board/calendar/calendar.table.jsx
index c773228..0207f0f 100644
--- a/components/board/calendar/calendar.table.jsx
+++ b/components/board/calendar/calendar.table.jsx
@@ -7,29 +7,22 @@ const CalendarTable = ({ calendars }) => {
     <Table celled selectable textAlign={'center'}>
       <Table.Header>
         <Table.Row>
-          <Table.HeaderCell width={4}>제목</Table.HeaderCell>
-          <Table.HeaderCell width={6}>기간</Table.HeaderCell>
-          <Table.HeaderCell width={1}>D-Day</Table.HeaderCell>
+          <Table.HeaderCell width={6}>제목</Table.HeaderCell>
+          <Table.HeaderCell width={4}>날짜</Table.HeaderCell>
+          <Table.HeaderCell width={2}>D-Day</Table.HeaderCell>
         </Table.Row>
       </Table.Header>
       <Table.Body>
         {calendars.map((calendar) => {
-          const isActive = moment().isBetween(
-            moment(calendar.start_date),
-            moment(calendar.end_date),
-          );
-          const duration = moment(calendar.end_date).diff(
-            moment(calendar.start_date),
-            'days',
-          );
-          const dDay = moment(calendar.start_date).diff(moment(), 'days');
+          const isDisabled = moment().isAfter(moment(calendar.event_date));
+          const dDay = moment(calendar.event_date).diff(moment(), 'days');
 
           return (
             <Link
               href={`/board/calendar/update/${calendar.id}`}
               key={calendar.id}
             >
-              <Table.Row key={calendar.id} positive={isActive}>
+              <Table.Row key={calendar.id} disabled={isDisabled}>
                 <Table.Cell>
                   {calendar.link ? (
                     <a
@@ -44,9 +37,7 @@ const CalendarTable = ({ calendars }) => {
                   )}
                 </Table.Cell>
                 <Table.Cell>
-                  {moment(calendar.start_date).format('YYYY-MM-DD')} ~{' '}
-                  {moment(calendar.end_date).format('YYYY-MM-DD')} ({duration}
-                  일)
+                  {calendar.event_date}
                 </Table.Cell>
                 <Table.Cell>{dDay ? `D-${dDay}` : 'D-Day'}</Table.Cell>
               </Table.Row>
diff --git a/pages/board/calendar/create.jsx b/pages/board/calendar/create.jsx
index bf5d018..f3c7fee 100644
--- a/pages/board/calendar/create.jsx
+++ b/pages/board/calendar/create.jsx
@@ -13,27 +13,15 @@ const CalendarCreatePage = () => {
 
   const [title, setTitle] = useState('');
   const [start_date, setStartDate] = useState();
-  const [end_date, setEndDate] = useState();
 
-  const duration = moment(end_date).diff(moment(start_date), 'days');
+  const dDay = moment(event_date).diff(moment(), 'days');
 
   const handleSubmit = async () => {
     const body = {
       title: title,
       start_date: start_date,
-      end_date: end_date,
     };
 
-    if (!start_date || !end_date) {
-      alert('시작 일자와 종료 일자를 입력해주세요.');
-      return;
-    }
-
-    if (start_date > end_date) {
-      alert('시작 일자가 종료 일자보다 늦을 수 없습니다.');
-      return;
-    }
-
     PoPoAxios.post('/calendar', body, { withCredentials: true })
       .then(() => {
         alert('학사일정이 등록 되었습니다!');
@@ -68,23 +56,9 @@ const CalendarCreatePage = () => {
               dateFormat="yyyy-MM-dd"
             />
           </div>
-          <div className={'required field'}>
-            <label>종료 날짜</label>
-            <ReactDatePicker
-              selected={end_date ? moment(end_date).toDate() : null}
-              onChange={(date) => setEndDate(moment(date).format('YYYY-MM-DD'))}
-              onKeyDown={(e) => e.preventDefault()}
-              dateFormat="yyyy-MM-dd"
-              minDate={moment(start_date).toDate()}
-            />
-          </div>
         </div>
         <Message>
-          {!start_date || !end_date
-            ? '행사 시작 날짜와 종료 날짜를 입력해주세요.'
-            : start_date > end_date
-              ? '시작 날짜가 종료 날짜보다 늦을 수 없습니다.'
-              : `행사 기간: ${start_date} ~ ${end_date} (${duration}일)`}
+          {!event_date ? '게시 시작 날짜와 종료 날짜를 입력해주세요.' : `D-${dDay}`}
         </Message>
 
         <Form.Button type={'submit'}>생성</Form.Button>
diff --git a/pages/board/calendar/update/[id].jsx b/pages/board/calendar/update/[id].jsx
index dd3c475..b98abb4 100644
--- a/pages/board/calendar/update/[id].jsx
+++ b/pages/board/calendar/update/[id].jsx
@@ -16,23 +16,16 @@ const CalendarUpdatePage = ({ calendarInfo }) => {
 
   const id = calendarInfo.id;
   const [title, setTitle] = useState(calendarInfo.title);
-  const [start_date, setStartDate] = useState(calendarInfo.start_date);
-  const [end_date, setEndDate] = useState(calendarInfo.end_date);
+  const [event_date, setEventDate] = useState(calendarInfo.event_date);
 
-  const duration = moment(end_date).diff(moment(start_date), 'days');
+  const dDay = moment(event_date).diff(moment(), 'days');
 
   const handleSubmit = async () => {
     const body = {
       title: title,
-      start_date: start_date,
-      end_date: end_date,
+      event_date: event_date,
     };
 
-    if (start_date > end_date) {
-      alert('시작 일자가 종료 일자보다 늦을 수 없습니다.');
-      return;
-    }
-
     PoPoAxios.put(`/calendar/${id}`, body, { withCredentials: true })
       .then(() => {
         alert('학사일정이 업데이트 되었습니다!');
@@ -60,31 +53,17 @@ const CalendarUpdatePage = ({ calendarInfo }) => {
           <div className={'required field'}>
             <label>시작 날짜</label>
             <ReactDatePicker
-              selected={start_date ? moment(start_date).toDate() : null}
+              selected={event_date ? moment(event_date).toDate() : null}
               onChange={(date) =>
-                setStartDate(moment(date).format('YYYY-MM-DD'))
+                setEventDate(moment(date).format('YYYY-MM-DD'))
               }
               onKeyDown={(e) => e.preventDefault()}
               dateFormat="yyyy-MM-dd"
             />
           </div>
-          <div className={'required field'}>
-            <label>종료 날짜</label>
-            <ReactDatePicker
-              selected={end_date ? moment(end_date).toDate() : null}
-              onChange={(date) => setEndDate(moment(date).format('YYYY-MM-DD'))}
-              onKeyDown={(e) => e.preventDefault()}
-              dateFormat="yyyy-MM-dd"
-              minDate={moment(start_date).toDate()}
-            />
-          </div>
         </div>
         <Message>
-          {!start_date || !end_date
-            ? '게시 시작 날짜와 종료 날짜를 입력해주세요.'
-            : start_date > end_date
-              ? '시작 날짜가 종료 날짜보다 늦을 수 없습니다.'
-              : `게시 기간: ${start_date} ~ ${end_date} (${duration}일)`}
+          {!event_date ? '게시 시작 날짜와 종료 날짜를 입력해주세요.' : `D-${dDay}`}
         </Message>
 
         <Form.Group>