Time zone calculator
Convert a time from one UTC offset to another — handy for scheduling calls or flights across time zones.
Fill in the fields and press Calculate to see your result here.
How this calculation works
This converts by UTC offset rather than by named city or country, since offsets are unambiguous while city time zones can shift with daylight saving rules that change by year and location. Find your city's current UTC offset (a quick search works) and use that.
Worked example
3:00 PM in UTC+1 is 6 hours ahead of UTC-5, so the same moment is 9:00 AM in UTC-5.
Tips
Offsets can shift with daylight saving
The same city might be UTC+1 in winter and UTC+2 in summer — double-check the current offset for your dates, especially near clock-change weekends.
Use the offset for the travel date
A place can switch between winter and summer offsets. Look up its offset for the date you care about.
Half-hour zones
Some regions, such as India (UTC+5:30) and Nepal (UTC+5:45), use offsets that aren't whole hours. This tool uses whole hours, so those places are approximate.
Find a shared meeting time
Convert your morning to their time to look for an hour that suits both sides.
Frequently asked questions
Why doesn't this use city names like ‘New York’ or ‘Tokyo’?
Named time zones change offset with daylight saving and can differ by exact rules per country. Using UTC offsets directly avoids getting that rule wrong.
Does this handle the date changing too?
Yes — if the converted time crosses midnight, the result notes whether it lands on the next or previous day.