Global Time Desk / 01

Time Zone Converter

Convert dates and times between cities, compare time differences, and plan across time zones with daylight saving time accounted for.

Calculations use this browser’s IANA time zone data. Rules can change by government decision; installed data may need updates. Future dates follow currently published rules, not guaranteed future law. Device clock accuracy affects “now.”

Source date Source time

From time zone

To time zone

Converted time

—

Local date: —

Time zone: —

UTC offset: —

Day difference: —

Source: —

Destination: —

How this converter works

The source fields are a local wall-clock date and time in the From zone. The engine resolves that civil time to an instant, then displays the same instant in the To zone. Swap keeps the instant and fills the former destination as the new source.

If a time occurs twice after clocks move backward, choose earlier or later. If a time is skipped when clocks move forward, pick a nearest valid alternative. See also the DST checker and conversion guide.