Time Zone Converter

Convert any time to as many time zones as you need. Daylight saving time is applied automatically based on the date you select.

Set Source Time

Conversion Results

Results reflect current DST rules for the selected date. +1 day / -1 day badges indicate a calendar day change.

Add a Destination Time Zone

Understanding Your Conversion Results

Each row in the results table shows the converted time for one destination time zone. The abbreviation (such as EST, GMT, IST, or JST) reflects the abbreviation currently in use at the selected date — this changes between standard time and daylight saving time for zones that observe both.

The +1 day badge means the converted time falls the day after your source date. The -1 day badge means it falls the day before. This matters when you're scheduling across the International Date Line or when a late-night meeting in one zone falls in the early morning of another zone's next day.

Tips for Accurate Conversions

  • Always specify a date, not just a time — DST transitions can change the offset by one hour.
  • If you're converting a recurring weekly event, check conversions around DST change dates: the overlap window for a group may shift by an hour.
  • UTC never changes — use it as a stable reference point when coordinating across many zones.
  • India (IST, UTC+5:30), Iran (IRST, UTC+3:30), Nepal (NPT, UTC+5:45), and a few other zones have non-standard offsets — this tool handles all of them correctly.

Popular Time Zone References

City / Region Standard Offset DST Offset Observes DST?
New York (EST)UTC-5UTC-4 (EDT)Yes — Mar to Nov
London (GMT)UTC+0UTC+1 (BST)Yes — Mar to Oct
Paris / Berlin (CET)UTC+1UTC+2 (CEST)Yes — Mar to Oct
Mumbai / New Delhi (IST)UTC+5:30—No
Beijing / Shanghai (CST)UTC+8—No
Tokyo / Seoul (JST/KST)UTC+9—No
Sydney (AEST)UTC+10UTC+11 (AEDT)Yes — Oct to Apr
Dubai (GST)UTC+4—No
Note on DST dates: The United States and Canada change clocks on the second Sunday in March (spring forward) and the first Sunday in November (fall back). The European Union changes on the last Sunday in March and the last Sunday in October. Australia's Southern states change on the first Sunday in October and the first Sunday in April.