Does it handle Daylight Saving Time?

Yes — it uses your browser's Intl API which has the full IANA DST database.

How many clocks can I add?

As many as you want. Performance stays smooth.

Yes — clocks use your device's local time.

Not currently — this is a display tool. Use your OS alarm app.

Not yet — they reset on page reload. Persistence is planned.

It includes every zone your browser supports, which is the complete IANA database (500+).

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查看多个时区的当前时间

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