89799969 opened a new issue, #4234:
URL: https://github.com/apache/rocketmq-dashboard/issues/4234
## Problem
The Studio user management page renders lastSessionSeenAt,
earestSessionExpiresAt, passwordChangedAt, gmtCreate, and gmtModified with \
ew Date(value).toLocaleString()\. Those values are offset-less
\LocalDateTime\ strings. JavaScript therefore treats them as browser-local
wall-clock times, so every viewer outside UTC sees session activity and
password-change times shifted by their UTC offset.
## Evidence
- \AuthService.now()\
(\server/src/main/java/org/apache/rocketmq/studio/auth/AuthService.java\)
writes \LocalDateTime.ofInstant(Instant.ofEpochMilli(clock.millis()),
ZoneOffset.UTC)\ into session \last_seen_at\ / \expires_at\ and user
\password_changed_at\. The clock is \Clock.systemUTC()\.
- \StudioUserVO\ exposes those fields as \LocalDateTime\ (serialized without
an offset).
- \UserManagement.tsx\ helper: \const dateTime = (value?: string) => (value
? new Date(value).toLocaleString() : '-');\ used by the table columns 最近活跃 /
最近过期 / 创建时间 and by the CSV export columns.
- Local reproduction (browser TZ \Asia/Shanghai\, UTC+8): \
ew Date('2026-08-22T09:30:00').toLocaleString()\ → \2026/8/22 09:30:00\
(wrong; should be 17:30 local). \
ew Date('2026-08-22T09:30:00Z').toLocaleString()\ → \2026/8/22 17:30:00\.
The same defect class was already fixed on other surfaces: alert
\lastTriggered\ (#4174) and query-history \queriedAt\ (#4221 / #4222). The
shared helper \ ormatUtcDateTime\ in \web/src/utils/format.ts\ already appends
\Z\ for offset-less values; user management never adopted it.
## Expected behavior
Render and export these timestamps with \ ormatUtcDateTime\, matching the
alert and query-history pages.
## Related
#4174, #4221, #4222
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