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Timezone Converter

Convert a local date-time between IANA time zones with DST awareness.

Timezone Converter
Local input
Output
Processing…
Processed locally in your browserNo input history is saved
About this tool

Made for the task at hand.

Translate a wall-clock time from a named source zone to a target zone using the browser internationalization database rather than fixed offsets.

How to use

  1. Enter a local date-time in YYYY-MM-DDTHH:mm format.
  2. Set the source IANA zone and choose a target zone.
  3. Review target local time, UTC instant, and Unix seconds.
Your work stays yours.
Tool inputs are processed locally in your browser and are never sent to KitVerse servers. Clear the workspace when using a shared device.
Common questions
Are daylight-saving changes considered?

Yes. IANA zone rules are applied; nonexistent spring-forward times are rejected and repeated fallback times resolve to one valid instant.

Why not simply add a fixed offset?

Offsets vary by date and location. Named zones capture those changes more reliably than a permanent hour offset.

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