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Timezone Converter
First line: FROM and TO IANA zones, e.g. "UTC → America/New_York". Then one timestamp per line ("2024-03-10 12:00" or ISO). Each is interpreted in the FROM zone and shown in the TO zone with its UTC offset — using the browser's built-in Intl time-zone database, DST included. Deterministic for a given zone database.
A little guidance. A better result.
How to use Timezone Converter
A wall-clock time in one IANA zone → the same instant in another, DST-aware, with offsets shown.
Prepare your input
Enter FROM → TO IANA zones on the first line, then wall-clock timestamps.
Use the workspace
Review converted times with UTC offsets.
Check your result
Check the date as well as the clock time.
Know the limits
Daylight-saving transitions can make wall times ambiguous or nonexistent; verify critical transition-day times independently.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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