Time Zone Converter

Convert a date and time between any time zones, with daylight-saving time handled automatically.

Runs in your browser. Your input is processed on your device and is not uploaded to our server.

Time zoneLocal date and timeUTC offset

How to use the Time Zone Converter

  1. Enter the date and time and choose its time zone.
  2. Add the time zones you want to convert to.
  3. Read the converted local times and UTC offsets.

Conversions use the IANA time-zone database built into your browser, so daylight-saving rules and historical offset changes are applied for the exact date you enter. Times that do not exist (skipped by a daylight-saving change) or occur twice are flagged.

Frequently asked questions

Why does the offset change during the year?
Many regions use daylight-saving time, which shifts the offset by an hour for part of the year. The converter uses the rules in force on the chosen date.