Time zone converter

Choose the time you mean

Select a base city, a local date, and a clock time. Each result row represents the same instant. The city’s named IANA rules choose its offset for that date; a fixed offset copied from a previous meeting can be wrong after a clock change.

Changing the base city

Choose whether a new base city should keep the same instant or keep the entered local clock time. Keeping the instant changes the new base’s displayed time. Keeping the local time resolves a new instant in the new city. The two operations answer different planning questions.

Read the date as well as the hour

At 13:00 UTC on 27 October 2026, London reads 13:00, New York reads 09:00, and Sydney reads 00:00 on 28 October. A next-day label is part of the result, not decoration. Switching between 12-hour and 24-hour display leaves the underlying instant unchanged.

Resolve unusual local times

A clock change can skip a local time or make it occur twice. The converter asks you to correct a missing time or choose the earlier or later repeated instance. Check the selected offset before downloading or sharing the result.