World Clock

About this tool

Each clock reads the current time directly in its own IANA time zone using your browser's built-in Intl API — daylight saving transitions are handled automatically and correctly for each zone on its own schedule, so two zones that are 8 hours apart in January might be 7 or 9 hours apart in July. The zone list comes from your browser's time zone database, so it's always current.

Nothing entered here is sent to a server — the entire tool runs as JavaScript in your browser tab.