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Time Zone Converter

Pick a date and time in your reference time zone and see it converted across cities around the world.

Cities to compare

Reference (local)Sun, Oct 04, 10:45 PM
São PauloSun, Oct 04, 07:45 PM
LisboaSun, Oct 04, 11:45 PM
New YorkSun, Oct 04, 06:45 PM
TokyoMon, Oct 05, 07:45 AM

Plan calls and meetings across time zones

Choose a date, time and reference time zone, then pick the cities you want to compare. Each one updates instantly, accounting for daylight saving time where it applies.

Calculated locally, on your device

Conversions use your browser's built-in time zone database, so no data is sent to a server.

Frequently asked questions

Does this account for daylight saving time?

Yes, conversions automatically reflect whether daylight saving time is in effect on the chosen date for each zone.

How accurate is the local time zone detection?

The local zone is detected from your device settings; you can change the reference zone manually if it's incorrect.

Can I compare more than one city at a time?

Yes, select as many cities as you need and they will all update together.

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