Time zone converter

Convert a date and time between IANA time zones such as Asia/Tokyo and America/New_York, with daylight-saving handled.

Type an IANA name such as Asia/Tokyo or pick from the list. Conversions run in this browser with the built-in time zone data. A wall time skipped by daylight saving rolls forward to the next valid instant; a repeated wall time resolves to its first occurrence.

Converted time

Choose a date-time and two time zones.

How to use

  1. Enter the date and time.
  2. Choose the source and target time zones.
  3. Convert and read the local time, weekday, and offset difference.

What it supports

Uses the browser's built-in time zone data. A wall time skipped by daylight saving rolls forward to the next valid instant; a repeated wall time resolves to its first occurrence.

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