diff --git a/frontend/static/pages/admin/reports.html b/frontend/static/pages/admin/reports.html
index a717baf..eae5e74 100644
--- a/frontend/static/pages/admin/reports.html
+++ b/frontend/static/pages/admin/reports.html
@@ -95,7 +95,7 @@
           <thead>
             <tr>
               <th class="cb-cell"><input type="checkbox" id="chkAll" onchange="toggleAll(this)"></th>
-              <th>#</th><th>충전기ID</th><th>충전소</th><th>종류</th><th>문제유형</th><th>신고일시</th><th>신고자</th><th>상태</th><th>정비사</th>
+              <th>#</th><th>충전기ID</th><th>충전소</th><th>종류</th><th>문제유형</th><th>발생일시</th><th>신고일시</th><th>신고자</th><th>상태</th><th>정비사</th>
             </tr>
           </thead>
           <tbody id="tbody"></tbody>
@@ -214,6 +214,7 @@ function renderTable() {
       <td onclick="location.href='/pages/admin/report-detail.html?id=${r.id}'" style="cursor:pointer">${r.station_name||'-'}</td>
       <td onclick="location.href='/pages/admin/report-detail.html?id=${r.id}'" style="cursor:pointer">${r.charger_type||'-'}</td>
       <td onclick="location.href='/pages/admin/report-detail.html?id=${r.id}'" style="cursor:pointer;max-width:200px">${(r.issue_types||[]).join(', ')}</td>
+      <td onclick="location.href='/pages/admin/report-detail.html?id=${r.id}'" style="cursor:pointer">${r.occurred_at ? Auth.fmtDt(r.occurred_at) : '<span style="color:var(--gray4)">-</span>'}</td>
       <td onclick="location.href='/pages/admin/report-detail.html?id=${r.id}'" style="cursor:pointer">${Auth.fmtDt(r.reported_at)}</td>
       <td onclick="location.href='/pages/admin/report-detail.html?id=${r.id}'" style="cursor:pointer">
         ${r.source === 'dashboard'
diff --git a/frontend/static/pages/observer/dashboard.html b/frontend/static/pages/observer/dashboard.html
index bb9001b..b6b6f90 100644
--- a/frontend/static/pages/observer/dashboard.html
+++ b/frontend/static/pages/observer/dashboard.html
@@ -56,7 +56,7 @@
         <table>
           <thead><tr>
             <th>접수번호</th><th>충전기ID</th><th>충전소명</th><th>문제유형</th>
-            <th>에러코드</th><th>신고일시</th><th>정비사</th><th>상태</th>
+            <th>에러코드</th><th>발생일시</th><th>신고일시</th><th>정비사</th><th>상태</th>
           </tr></thead>
           <tbody id="tbody"></tbody>
         </table>
@@ -112,6 +112,7 @@ function render(chargerId) {
       <td>${r.station_name || '-'}</td>
       <td>${(r.issue_types || []).join(', ') || '-'}</td>
       <td>${r.error_code || '-'}</td>
+      <td>${r.occurred_at ? Auth.fmtDt(r.occurred_at) : '<span style="color:var(--gray4)">-</span>'}</td>
       <td>${Auth.fmtDt(r.reported_at)}</td>
       <td>${r.mechanic_name || '-'}</td>
       <td>${Auth.statusBadge(r.status)}</td>
diff --git a/frontend/static/pages/observer/reports.html b/frontend/static/pages/observer/reports.html
index a85d29b..436e2fe 100644
--- a/frontend/static/pages/observer/reports.html
+++ b/frontend/static/pages/observer/reports.html
@@ -44,7 +44,7 @@
         <table>
           <thead><tr>
             <th>접수번호</th><th>충전기ID</th><th>충전소명</th><th>CPO</th>
-            <th>문제유형</th><th>에러코드</th><th>신고일시</th>
+            <th>문제유형</th><th>에러코드</th><th>발생일시</th><th>신고일시</th>
             <th>정비사</th><th>조치완료</th><th>상태</th>
           </tr></thead>
           <tbody id="tbody"></tbody>
@@ -91,6 +91,7 @@ function render() {
       <td>${r.cpo_name || '-'}</td>
       <td>${(r.issue_types || []).join(', ') || '-'}</td>
       <td>${r.error_code || '-'}</td>
+      <td>${r.occurred_at ? Auth.fmtDt(r.occurred_at) : '<span style="color:var(--gray4)">-</span>'}</td>
       <td>${Auth.fmtDt(r.reported_at)}</td>
       <td>${r.mechanic_name || '-'}</td>
       <td>${r.mechanic_name && r.status === 'done' ? '완료' : '-'}</td>