diff --git a/egbim/app.js b/egbim/app.js
index c1dc488..53d99fc 100644
--- a/egbim/app.js
+++ b/egbim/app.js
@@ -61,6 +61,24 @@
     return "";
   }
 
+  function formatKoreanDateTime(value, includeTime) {
+    const raw = String(value == null ? '' : value).trim();
+    if (!raw) return '';
+    if (/^\d{4}-\d{2}-\d{2}$/.test(raw)) return raw;
+    let timestamp = raw.replace(' ', 'T');
+    if (!/[zZ]$|[+-]\d{2}:?\d{2}$/.test(timestamp)) timestamp += 'Z';
+    const date = new Date(timestamp);
+    if (Number.isNaN(date.getTime())) return raw;
+    const options = { timeZone: 'Asia/Seoul', year: 'numeric', month: '2-digit', day: '2-digit' };
+    if (includeTime) Object.assign(options, { hour: '2-digit', minute: '2-digit', hourCycle: 'h23' });
+    const parts = new Intl.DateTimeFormat('en-CA', options).formatToParts(date).reduce(function (result, part) {
+      result[part.type] = part.value;
+      return result;
+    }, {});
+    const day = parts.year + '-' + parts.month + '-' + parts.day;
+    return includeTime ? day + ' ' + parts.hour + ':' + parts.minute : day;
+  }
+
   function toBoolean(value) {
     if (value === true || value === 1) return true;
     return ["true", "1", "yes", "y"].indexOf(String(value || "").trim().toLowerCase()) > -1;
@@ -104,7 +122,8 @@
       author: value(["requester_name", "author_name", "authorName", "name", "author"]) || "작성자",
       title: value(["title", "subject"]) || "제목 없음",
       content: value(["contents", "content", "body"]) || "",
-      date: String(createdAt).slice(0, 10),
+      date: formatKoreanDateTime(createdAt, false),
+      dateTime: formatKoreanDateTime(createdAt, true),
       createdAt: createdAt,
       status: normalizeStatus(value(["feedback_status", "feedbackStatus", "status_code", "status"])),
       secret: toBoolean(secret),
@@ -483,7 +502,7 @@
           "<td>" + number + "</td><td class=\"category-cell\">" + escapeHtml(post.category.replace("문의", "")) + "</td>" +
           "<td>" + escapeHtml(company) + "</td><td>" + escapeHtml(post.department) + "</td><td>" + escapeHtml(post.author) + "</td>" +
           "<td class=\"subject\"><span class=\"subject-link\">" + (post.secret ? "<span class=\"lock\">🔒</span>" : "") + escapeHtml(post.title) + "</span>" + (!isNotice && post.date === "2026-09-17" ? "<span class=\"new-mark\">N</span>" : "") + "</td>" +
-          "<td>" + escapeHtml(post.date) + "</td><td>" + (status ? "<span class=\"status " + statusClass + "\">" + escapeHtml(status) + "</span>" : "-") + "</td></tr>";
+          "<td>" + escapeHtml(post.dateTime || post.date) + "</td><td>" + (status ? "<span class=\"status " + statusClass + "\">" + escapeHtml(status) + "</span>" : "-") + "</td></tr>";
       }).join("");
       qsa("#qaRows tr").forEach(function (row) { row.addEventListener("click", function () { window.location.href = "detail.html?id=" + encodeURIComponent(row.dataset.id); }); });
       pagination.innerHTML = Array.from({ length: totalPages }, function (_, i) { return "<button type=\"button\" class=\"" + (i + 1 === page ? "active" : "") + "\" data-page=\"" + (i + 1) + "\">" + (i + 1) + "</button>"; }).join("");
@@ -527,7 +546,7 @@
       if (!qs('#category').value || !title || !content) { errorBox.textContent = '구분, 제목, 내용을 모두 입력해주세요.'; errorBox.style.display = 'block'; return; }
       const feedbackId = makeUuid();
       const createdAt = new Date().toISOString();
-      const post = { id: feedbackId, feedbackId: feedbackId, requesterId: currentUser.requesterId, requesterTenantId: currentUser.requesterTenantId, category: qs('#category').value, company: currentUser.company || currentUser.tenantName || currentUser.familyCompany || '외부 사용자', department: currentUser.department || '-', author: currentUser.name || currentUser.loginId, title: title, date: createdAt.slice(0, 10), createdAt: createdAt, status: '신규', secret: qs('#secret').checked, content: content };
+      const post = { id: feedbackId, feedbackId: feedbackId, requesterId: currentUser.requesterId, requesterTenantId: currentUser.requesterTenantId, category: qs('#category').value, company: currentUser.company || currentUser.tenantName || currentUser.familyCompany || '외부 사용자', department: currentUser.department || '-', author: currentUser.name || currentUser.loginId, title: title, date: formatKoreanDateTime(createdAt, false), dateTime: formatKoreanDateTime(createdAt, true), createdAt: createdAt, status: '신규', secret: qs('#secret').checked, content: content };
       const submitButton = qs('#submitButton');
       submitButton.disabled = true;
       submitButton.textContent = '등록 중...';
@@ -584,7 +603,7 @@
       statusElement.classList.toggle("review", status !== "완료");
     };
     renderDetailStatus();
-    qs('[data-detail-date]').textContent = post.date;
+    qs('[data-detail-date]').textContent = post.dateTime || post.date;
     qs('[data-detail-author]').textContent = post.author;
     let detailUser = getAuthUser();
     qs('[data-detail-company]').textContent = getPostCompanyLabel(post, detailUser);
@@ -731,7 +750,7 @@
       return {
         id: comment.id || '',
         author: comment.author_name || comment.authorName || comment.author?.name || comment.author || '작성자',
-        date: comment.created_at || comment.createdAt || comment.updated_at || '',
+        date: formatKoreanDateTime(comment.created_at || comment.createdAt || comment.updated_at || '', true),
         content: comment.content || comment.body || '',
         attachments: (Array.isArray(rawAttachments) ? rawAttachments : [rawAttachments]).map(normalizeAttachment)
       };