← Blogby Marcell Almeida

How to convert time between time zones

Pick a date/time and two IANA time zones — see the equivalent time in each, with DST handled automatically.

Scheduling across time zones is error-prone. The Time Zone Converter uses the browser Intl API to convert any datetime between 400+ IANA zones — including daylight saving transitions.

Try it — pick date, time, and two zones

Open full tool →

How it works

  1. Pick date and time — defaults to now.
  2. Select source zone — defaults to your local zone.
  3. Select destination zone — UTC, US/Eastern, Europe/London, Asia/Tokyo, etc.

DST is automatic

The Intl API applies daylight saving rules for the selected date. No manual offset math required.

Related tools

For Unix timestamps, use the Unix Timestamp Converter. For cron schedules, try the Cron Expression Builder.

The How to convert time between time zones is free, runs locally, and never sends your data to a server. More converter tools at maratool.com.