World Clock — Current Time in Major Cities

Date & Time

A world clock shows current times for common UTC offset regions from your browser time.

World Clock

Runs in this browserUTC offsetsLocal timezone

This tool uses selected fixed UTC offsets, not city-specific IANA timezone rules. World clock values are calculated from the current browser time and input is not sent to a server.

Current UTC

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What is it

World time is useful for international meetings, deployment windows, and travel planning. This tool calculates from your browser time and fixed UTC offsets without a server request.

regional time = current UTC time + regional UTC offset

How to use

1Open the page.
2Press refresh to update current time.
3Compare date and time by region.

Reference

World Clock — Current Time in Major Cities Reference
Region	Offset
Seoul	UTC+09:00
New York	UTC-05:00
London	UTC+00:00

Sources & standards

ECMAScript Language Specification - Ecma International

FAQ

Does it apply daylight saving time automatically?

No. It calculates with the fixed UTC offsets shown in the table.

Does world clock use a server?

No. It calculates from your browser time and does not send a server request.