dhruwal

This plugin is useful when you want to know what date time & timezone is it on server where wordpress is hosted if you are in other timezone. 
Output looks like:
Server Date/Time: Thu 01st Jan, 2025 11:10 am 
Server Timezone: America/Phoenix, (MST -07:00)
Version Change log:
v0.5 
Supports upto WordPress 3.7.1
v0.4 
Supports upto WordPress 3.6
v0.3 
Minimize css code 
Supports upto WordPress 3.5.1
v0.2 
Added description before date time 
Added timezone information 
Changed text color from red to green
v0.1 
Initial release

WP Server Date Time

This plugin shows the server local current date time & timezone in the upper right of your admin screen on every page.

Amin Raoufi

Admin Toolbar Live Clock keeps the current time and date always in view while you work in wp-admin.
It’s ideal for editors and admins who constantly check scheduled content, cron jobs, moderation timestamps, or who manage sites across different time-zones.
<blockquote>
Designed for daily professional use: lightweight, clean UI, no clutter — and optional “Minimal mode” when you want the plugin at its simplest.
</blockquote>
<h3>Who benefits?</h3>
<ul>
<li>Editors coordinating global content releases</li>
<li>Support agents logging activity against a consistent time source</li>
<li>Developers verifying scheduled tasks (WP-Cron / Action Scheduler)</li>
<li>Multisite admins overseeing sites across regions</li>
</ul>
<h3>Feature highlights</h3>
<ul>
<li>Live ticking — updates every second (no page reloads, no Ajax polling)</li>
<li>Display modes — choose Digital or the new Analog clock mode</li>
<li>Analog clock (new)
<ul>
<li>Multiple themes (including Tomanify)</li>
<li>Size options (Small / Large)</li>
<li>Optional date display inside the analog face</li>
</ul>
</li>
<li>Floating clock (new) — show the clock as a floating widget in wp-admin
<ul>
<li>Analog mode uses the floating view automatically</li>
</ul>
</li>
<li>Draggable position (new) — drag the floating clock and it remembers its position for next visits</li>
<li>Minimal mode (new) — disables advanced styling/options and keeps only the core settings</li>
<li>Calendars — Gregorian, Persian (Jalali), Islamic (Hijri), Hebrew, Buddhist (Thai) and Japanese</li>
<li>Plugin language — choose the plugin language independently from the WordPress site language
<ul>
<li>Languages bundled – en_US, fa_IR, ar, es_ES, fr_FR, he_IL, hi_IN, ja, th_TH, de_DE, ru_RU, tr_TR, ps_AF, uk_UA, pl_PL, ro_RO, zh_CN, ko_KR (+ fully translatable via PO/MO)</li>
</ul>
</li>
<li>Time formats — 12-hour or 24-hour</li>
<li>Timezone — use the site timezone or pick any IANA timezone</li>
<li>Colour controls — clock & date colours (where applicable)</li>
<li>Tabbed settings UI (new) — cleaner settings screen with General / Style / About</li>
<li>Admin-only — visible only in wp-admin (never on the front-end)</li>
<li>Clean uninstall — removes plugin options on Delete via <code>uninstall.php</code></li>
</ul>
Find the settings page at Settings → Toolbar Clock.
<h3>Author</h3>
Developed by Amin Raoufi.

Admin Toolbar Live Clock

Live clock for the WordPress admin bar with multi-calendar, per-user timezone, and optional analog & floating modes.

WP Server Date Time vs Admin Toolbar Live Clock