diff --git a/frontend/src/pages/catalog/TableDetail.tsx b/frontend/src/pages/catalog/TableDetail.tsx
index f002cb24..c0168f7e 100644
--- a/frontend/src/pages/catalog/TableDetail.tsx
+++ b/frontend/src/pages/catalog/TableDetail.tsx
@@ -9,7 +9,7 @@ import type {
 } from '../../types'
 import { DeleteButton, EmptyState, ErrorState, Notice, Skeleton, Spinner, confirmDialog, toast } from '../../components/ui'
 import { useLeaveGuard } from '../../lib/leave'
-import { formatDateTime, formatNumber } from '../../lib/format'
+import { formatDateTime, formatNumber, formatTime } from '../../lib/format'
 import {
   CATALOG_CARDINALITY_LABEL, CATALOG_IMPACT_TEXT, CATALOG_KIND_HINT, CATALOG_KIND_LABEL, CATALOG_TABLE_FIELD_HINT,
   CATALOG_TABLE_FIELD_LABEL, CATALOG_TEXT as CT, CODES_TEXT as KT,
@@ -326,9 +326,10 @@ export function TableDetail({ sourceId, table, rows, drafted, fillCodes, prev, n
             <div className="mt-0.5 flex flex-wrap items-center gap-x-2 gap-y-0.5 text-2xs text-faint">
               {label && <span className="mono break-all text-dim">{st?.qualified ?? detail.table_name}</span>}
               <span className="tnum" title={CT.usageHint}>{CT.usage(detail.usage)}</span>
-              <span className="tnum">
+              {/* 时间写全站统一的短格式（今天「10:05」、今年「9/27 15:21」），完整时间放在悬停里 */}
+              <span className="tnum" title={detail.updated_at ? formatDateTime(detail.updated_at) : undefined} data-detail-updated="">
                 {detail.updated_at
-                  ? (detail.updated_by ? CT.updatedBy(detail.updated_by, formatDateTime(detail.updated_at)) : CT.updatedAt(formatDateTime(detail.updated_at)))
+                  ? (detail.updated_by ? CT.updatedBy(detail.updated_by, formatTime(detail.updated_at)) : CT.updatedAt(formatTime(detail.updated_at)))
                   : CT.notStarted}
               </span>
               <CountBadges counts={counts} />
diff --git a/frontend/src/pages/catalog/parts.tsx b/frontend/src/pages/catalog/parts.tsx
index 5c90ee69..3e210979 100644
--- a/frontend/src/pages/catalog/parts.tsx
+++ b/frontend/src/pages/catalog/parts.tsx
@@ -6,7 +6,7 @@ import type { LucideIcon } from 'lucide-react'
 import clsx from 'clsx'
 import type { CatalogCounts, CatalogReviewAction, CatalogSource, CatalogStatus } from '../../types'
 import { Notice } from '../../components/ui'
-import { formatDateTime, formatNumber } from '../../lib/format'
+import { formatDateTime, formatNumber, formatTime } from '../../lib/format'
 import {
   CATALOG_SOURCE_LABEL, CATALOG_STATUS_HINT, CATALOG_STATUS_LABEL, CATALOG_TEXT as CT,
 } from '../../lib/terms'
@@ -256,7 +256,9 @@ export function ItemMark({ target, compact = false, disabled = false, disabledHi
               <span className="text-dim">{CATALOG_STATUS_HINT[status]}</span>
             </p>
             <p className="text-dim">{CT.itemSource(CATALOG_SOURCE_LABEL[source])}</p>
-            {target.updated_at && <p className="tnum text-faint">{CT.itemUpdated(formatDateTime(target.updated_at))}</p>}
+            {target.updated_at && (
+              <p className="tnum text-faint" title={formatDateTime(target.updated_at)} data-item-updated="">{CT.itemUpdated(formatTime(target.updated_at))}</p>
+            )}
             {target.note && <p className="whitespace-pre-wrap break-words rounded border bg-bg px-2 py-1 text-dim">{target.note}</p>}
           </div>
           <div className="mt-3 flex flex-wrap gap-1.5">
diff --git a/scripts/check-catalog.mjs b/scripts/check-catalog.mjs
index 5b3a7d9d..82b3569a 100644
--- a/scripts/check-catalog.mjs
+++ b/scripts/check-catalog.mjs
@@ -802,6 +802,10 @@ await section('数据目录 · 表详情与单项审阅', async () => {
   await openDetail(page, S1, 'visits')
   const head = await detail(page).locator('header').innerText()
   check('表头：中文名、表类型、表名、使用次数、谁改过', ['入园记录', '明细表', 'visits', '使用 42 次', '审核甲'].every((s) => head.includes(s)), head.replace(/\s+/g, ' '))
+  // 时间用全站统一的短格式（formatTime：今年写「9/28 10:00」），完整时间（带秒和时区）放在悬停里
+  const updated = detail(page).locator('[data-detail-updated]')
+  check('……修改时间写全站统一的短格式，完整时间放在悬停里', /^审核甲 于 (2026\/)?9\/28 10:00 修改$/.test(await updated.innerText())
+    && !head.includes('UTC') && (await updated.getAttribute('title')) === '2026-09-28 10:00:00 (UTC+08:00)', `${await updated.innerText()} / ${await updated.getAttribute('title')}`)
   const grain = page.locator('[data-field="grain"]')
   check('表级项：粒度的值和「推断 · 模型起草」', (await grain.innerText()).includes('一张门票的一次入园') && (await grain.innerText()).includes('推断')
         && (await grain.innerText()).includes('模型起草'))
@@ -826,6 +830,8 @@ await section('数据目录 · 表详情与单项审阅', async () => {
   await openMark(page, 'grain')
   const pt = await panel(page).innerText()
   check('点状态标识：弹层写位置、状态说明、来源', pt.includes('表的粒度的来源和状态') && pt.includes('只作提示，确认后才参与 SQL 检查') && pt.includes('来源：模型起草'), pt.replace(/\s+/g, ' '))
+  check('……更新时间也写短格式，完整时间放在悬停里', /更新于 (2026\/)?9\/28 10:00/.test(pt) && !pt.includes('UTC')
+    && (await panel(page).locator('[data-item-updated]').getAttribute('title')) === '2026-09-28 10:00:00 (UTC+08:00)', pt.replace(/\s+/g, ' '))
   check('……焦点落在「确认」上', await page.evaluate(() => document.activeElement?.getAttribute('data-review-action')) === 'confirm')
   check('……推断项已是初始状态，「恢复」不可点', await panel(page).locator('[data-review-action="reset"]').isDisabled())
   await page.keyboard.press('Escape')