Time Zone Converter
Pick a date and time in your own city and add the cities you work with. You see the same moment in each, whether it falls in business hours there, and the window when everyone is working.
Same moment, every city
- Mumbai / DelhiWed 11 Nov, UTC+5:30 Business hours 10:00
- New YorkTue 10 Nov, UTC-5 Outside hours 23:30
- LondonWed 11 Nov, UTC+0 Outside hours 04:30
- SingaporeWed 11 Nov, UTC+8 Business hours 12:30
Saved results stay in this browser only. Clearing your browser data removes them.
Planning a meeting across time zones
Time zones are offsets from UTC, and many places change their offset for daylight saving at different dates. The calculator uses your browser's time zone data, so it follows those changes for the date you choose.
A good meeting time falls inside everyone's working day. The shared window shows the 30-minute starts where all the cities you added are in business hours, using the hours you set.
When no window exists, rotate the inconvenient slot between teams or send a recording, instead of always asking the same city to work late.
The formula
Local time = UTC time + the zone's offset on that date. India (IST) is UTC+5:30 all year; many other zones change their offset when daylight saving starts or ends.
Common questions
How do I find a meeting time that works across time zones?
Enter the time in your city, add the other cities, and look for the shared business-hours window. If there is none, choose the least inconvenient slot and rotate it.
Does it handle daylight saving?
Yes. It uses your browser's time zone database for the date you pick, so the offsets are right for that day.
What is the offset for India?
India Standard Time is UTC+5:30 and does not change during the year.
Why are some zones half an hour off?
A few places, such as India, Nepal (UTC+5:45) and parts of Australia, use offsets that are not whole hours.
Keep your money notes in one place
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