Date & time
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From
To
Pick a destination city to see the converted time
Type a city, a country, or an abbreviation like PST into either field. Thousands of cities are searchable offline; online lookup covers the rest. Conversions come from the IANA time zone database built into your browser, the same data your phone's clock runs on, so offsets stay correct for past and future dates alike.
The converted time comes with its full date. A Tuesday evening in San Francisco is a Wednesday morning in Sydney, and the result says so outright. Hit the swap button to flip the direction.
Yes. Conversions run on the IANA time zone database in your browser, so DST transitions are applied on any date you pick, past or future.
The full date sits right under the converted time. If 9 pm on Tuesday in one city is already Wednesday in the other, you'll see the Wednesday date, not a bare clock reading.
Yes. Pick any date and time in the From city and you get the local time in the To city on that date, with whatever DST rules will be in force then.
Need more than two cities? The full world clock compares every timezone you care about at once. There's more about the app on the About page.