Time Zone Converter

Convert a date & time between two IANA time zones — DST-aware.

Date & time (in source time zone) Interpreted as local wall time in the selected source time zone. From timezone (IANA) To timezone (IANA)

Quick presets

Warsaw → New York
Warsaw → London
UTC → Your TZ
PST → EST
Tokyo → Sydney

Presets use current time and run conversion automatically.

From

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Input (source local) UTC Output (target local) ISO 8601 (target) RFC 3339 (target) Unix (seconds) Unix (milliseconds)

How it works

We interpret your input as a local wall time in the source time zone, handle DST gaps/overlaps, pivot through UTC, and convert to the target time zone.