diff --git a/src/components/management/StuffHeader.jsx b/src/components/management/StuffHeader.jsx
index 96c3966e..5fd12414 100644
--- a/src/components/management/StuffHeader.jsx
+++ b/src/components/management/StuffHeader.jsx
@@ -67,7 +67,9 @@ export default function StuffHeader() {
       </div>
       <div className="sub-table-box">
         <div className="info-title">{getMessage('stuff.detail.header.specificationConfirmDate')}</div>
-        <div className="info-inner">{managementState?.specificationConfirmDate}</div>
+        <div className="info-inner">
+          {managementState?.specificationConfirmDate ? `${dayjs(managementState.specificationConfirmDate).format('YYYY.MM.DD HH:mm:ss')}` : ''}
+        </div>
       </div>
       <div className="sub-table-box">
         <div className="info-title">{getMessage('stuff.detail.header.lastEditDatetime')}</div>