World clock — compare current times

See the current date and time in up to eight time zones. Compare cities with date changes and UTC offsets in one view.

Add a city · find a city

Add a city

Up to 8 cities. Uses your device clock.

Europe/London

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America/New York

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Asia/Tokyo

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Uses bundled IANA time zone rules 2026f. Governments may change future rules.

Free, no account. Your inputs stay in this tab and are not sent to a server.

Preparing your tool…

How it works

Each clock represents the same device instant, converted using the bundled IANA time-zone database. The display refreshes every second while this page is open.

Example

When it is 23:30 UTC, it is already the following day in Bangkok. Check both the date and the time before calling.

Is this an atomic clock?

No. It uses your device clock, not a network time synchronization service. An incorrect device clock affects all displayed times. Zone selections stay only in this tab.