diff --git a/Dao/MyBatis/Maps/CRoom.xml b/Dao/MyBatis/Maps/CRoom.xml
index 32a000e..004fbbb 100644
--- a/Dao/MyBatis/Maps/CRoom.xml
+++ b/Dao/MyBatis/Maps/CRoom.xml
@@ -613,7 +613,7 @@
             where a.lectno=#lectno# and a.exno=#exno# and a.eend is null
         </update>
         <select id="cr.lectsd" parameterClass="hashtable" resultClass="lectsd">
-            select a.lectno,a.attrate,a.cmno
+            select a.lectno,a.attrate,a.cmno,a.sdate,a.edate
             ,b.sdno,b.sdname,b.sddesc,b.fgno sdfgno,b.sdcondition
             ,a.sdate sstime,a.edate setime
             ,d.checktime,d.cpoint,d.feedb,d.fgno,d.atext
@@ -625,8 +625,8 @@
         </select>
         <update id="cr.lectsd.save" parameterClass="lectsd">
             update lectsd a
-            inner join lect b on b.lectno=a.lectno and b.userno=#userno#
-            inner join cm c on c.cmno=b.cmno and c.sstime &lt; now() and c.setime &gt; now()
+            inner join lect b on b.lectno=a.lectno and b.userno=#userno# and b.sdate &lt; now() and b.edate &gt; now()
+            inner join cm c on c.cmno=b.cmno 
             set a.udt=now(),a.uno=#uno#,a.uip=#uip#
             ,a.fgno=#fgno#,a.atext=#atext#
             ,a.submittime=now(),submitip=#uip#
@@ -636,7 +636,7 @@
             select a.lectno,a.sdno,#atext#,#fgno#,0,now(),#uip#,<include refid="sql.inv"></include>
             from (select #lectno# lectno,#userno# userno,#sdno# sdno) a
             inner join lect b on b.lectno=a.lectno and b.userno=a.userno
-            inner join cm c on c.cmno=b.cmno and c.sstime &lt; now() and c.setime &gt; now()
+            inner join cm c on c.cmno=b.cmno and b.sdate &lt; now() and b.edate &gt; now()
             left outer join lectsd d on d.lectno=a.lectno and d.sdno=a.sdno
             where d.lectno is null;
         </update>
diff --git a/FO/Views/CRoom/EstimationSubject.cshtml b/FO/Views/CRoom/EstimationSubject.cshtml
index af4edf6..f097aa7 100644
--- a/FO/Views/CRoom/EstimationSubject.cshtml
+++ b/FO/Views/CRoom/EstimationSubject.cshtml
@@ -18,7 +18,7 @@
                 </tr>
                 <tr>
                     <th>제출시간</th>
-                    <td>@Model.LectSD.sstime.ToString("yy-MM-dd") 00:00 ~ @Model.LectSD.setime.ToString("yy-MM-dd") 23:59</td>
+                    <td>수강 종료일 (@Model.LectSD.edate.Value.ToString("yyyy-MM-dd")) 이내</td>
                 </tr>
                 <tr>
                     <td colspan="2">
@@ -61,7 +61,7 @@
                 </tbody>
             </table>
             <ul class="lctBtn col1">
-                @if (Model.LectSD.sstime < DateTime.Now && Model.LectSD.setime > DateTime.Now && Model.LectSD.checktime == null)
+                @if (Model.LectSD.sdate < DateTime.Now && Model.LectSD.edate > DateTime.Now && Model.LectSD.checktime == null)
                 {
                     <li><a href="#" class="bk sm" onclick="save()">제출</a></li>
                 }
diff --git a/Model/CM.cs b/Model/CM.cs
index f9144cd..34b6169 100644
--- a/Model/CM.cs
+++ b/Model/CM.cs
@@ -3384,6 +3384,14 @@ namespace NP.Model
         }
         public String lectnos { get; set; }     
         public Int64 bno { get; set; }
+        /// <summary>
+        /// 온라인강좌 수강시작일
+        /// </summary>
+        public DateTime? sdate { get; set; }
+        /// <summary>
+        /// 온라인강좌 수강종료일
+        /// </summary>
+        public DateTime? edate { get; set; }
     }
     /// <summary>
     /// 토론글