Time Zone Converter
Convert any time between world time zones. DST is handled automatically.
Converted Time
—
Target time zone
Date
—
At destination
Difference
—
Hours apart
Major Cities
Time Zone Guide
Common Time Zones
| Abbreviation | Name | UTC Offset |
|---|---|---|
| EST/EDT | Eastern (US) | UTC-5 / UTC-4 |
| CST/CDT | Central (US) | UTC-6 / UTC-5 |
| MST/MDT | Mountain (US) | UTC-7 / UTC-6 |
| PST/PDT | Pacific (US) | UTC-8 / UTC-7 |
| GMT/BST | UK | UTC+0 / UTC+1 |
| CET/CEST | Central Europe | UTC+1 / UTC+2 |
| IST | India | UTC+5:30 |
| JST | Japan | UTC+9 |
| AEST/AEDT | Australia Eastern | UTC+10 / UTC+11 |
Scheduling Tips
- Always specify the time zone when scheduling across regions.
- Use UTC for international meetings to avoid ambiguity.
- Remember that DST changes happen on different dates in different countries.
- Some regions don't observe DST at all (Arizona, Hawaii, most of Asia/Africa).
Frequently Asked Questions
What is UTC?
UTC (Coordinated Universal Time) is the global time standard from which all time zones are defined as offsets. It replaced GMT (Greenwich Mean Time) as the international reference. UTC does not observe daylight saving time, making it ideal for scheduling across time zones.
Does this handle daylight saving time?
Yes. This converter uses your browser's built-in timezone database (IANA), which automatically accounts for daylight saving time rules for each location. The converted times reflect DST adjustments that are in effect on the selected date.
What is the International Date Line?
The International Date Line runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you add a day; eastward, you subtract a day. This means it's possible for the converted time to be on a different calendar date than the original.
How many time zones are there?
There are 38 unique UTC offsets in use worldwide, ranging from UTC-12 to UTC+14. Some offsets are non-standard half-hours or quarter-hours (like India at UTC+5:30, Nepal at UTC+5:45, and the Chatham Islands at UTC+12:45).
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