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Time Converter

The Time Zone Converter translates any time from one time zone to another instantly. Enter a time and date, select the source and target time zones, and see the exact equivalent time — accounting for daylight saving time automatically. Schedule international meetings, coordinate across offices, and never miss a deadline due to time zone confusion.

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Date & Time

About the Time Zone Converter

The Time Zone Converter translates any time from one time zone to another instantly. Enter a time and date, select the source and target time zones, and see the exact equivalent time — accounting for daylight saving time automatically. Schedule international meetings, coordinate across offices, and never miss a deadline due to time zone confusion.

How to use it

  1. Enter the date and time you want to convert.
  2. Select the source time zone (where the time is from).
  3. Select the target time zone (where you want to convert to).
  4. View the converted time and date, including DST adjustments.

Formula & methodology

Conversion: UTC_time = local_time - UTC_offset_source. Target_time = UTC_time + UTC_offset_target. DST aware: use IANA timezone database for accurate historical and future DST transitions. Offset example: New York (EST) = UTC-5, (EDT) = UTC-4. London (GMT) = UTC+0, (BST) = UTC+1. Tokyo (JST) = UTC+9 (no DST). Crossing midnight: date changes by +/-1 day.

Common use cases

  • Scheduling international video calls across multiple time zones
  • Converting webinar or event times for global attendees
  • Tracking trading hours across international financial markets
  • Remote work coordination between distributed team members
  • Planning travel arrivals and departures across time zones

Frequently asked questions

Many regions do not observe DST: most of Asia, Africa, and equatorial countries stay on standard time year-round because the daylight variation is minimal near the equator. In the US, Arizona (except Navajo Nation) stays on MST year-round. Hawaii does not observe DST. The EU moved to end mandatory DST in 2021 (implementation varies by country). China, India, and Japan have never observed DST. The IANA timezone database tracks all these regional rules.
UTC (Coordinated Universal Time) is the international time standard — it does not observe daylight saving time and never changes. All other time zones are defined as offsets from UTC. Using UTC as a reference point eliminates DST confusion in calculations. In programming, always store timestamps in UTC and convert to local time for display. This prevents bugs when DST transitions occur or when users change time zones.

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