Timezone Converter — Convert Time Between Any Two Zones
Convert date and time between timezones — GMT, UTC, EST, PST, IST, and more. See the same instant in any region with DST support.
Convert a date and time from one timezone (GMT/UTC, EST, IST, etc.) to another. Daylight saving is handled automatically for regions that use it.
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About this tool
Global teams schedule across time zones. Convert a date and time from one IANA zone (e.g. America/New_York) to another (e.g. Asia/Tokyo) with daylight saving handled automatically.
Avoid manual UTC offset math that breaks twice a year when clocks shift.
Common use cases
- Scheduling meetings across offices
- Publishing live events for international audiences
- Support handoffs and on-call rotations
- Converting flight arrival times to local zone
How to use
- Enter the source date and time.
- Select source and target time zones from the list.
- Read the converted local time in the destination zone.
- Copy or share the result with participants.
This page is available at /tools/timezone-converter/.
Understanding the result
- DST transitions can skip or repeat hours—always verify ambiguous local times.
- UTC offset shown is for that specific date, not a fixed year-round offset.
- Same instant in time appears as different wall-clock times in each zone.
- Use city names (IANA zones), not abbreviations like EST which are ambiguous.
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FAQ
What is an IANA time zone?
Named zones like Europe/London with official DST rules, more reliable than GMT+5 labels.
Does this handle daylight saving?
Yes for IANA zones. Offsets adjust on transition dates automatically.
UTC vs GMT?
For conversion purposes they are effectively the same; UTC is the modern standard.
Why did my meeting shift an hour?
Likely a DST change in one region. Reconvert on the actual meeting date.