๐ Unit Conversion
Timezone Calculator
This is the arithmetic behind every "what time is it over there" question, with the clock broken into hours and minutes so nothing is lost to rounding. You supply a time and the two offsets, and it returns the matching time on the other side along with whether the date rolled forward or back.
How it works
Hours
Minutes
From UTC offset
To UTC offset
Result hours
Result minutes
Day offset
Frequently asked questions
How do I pick the right UTC offset?
Use the offset your zone is on for the date you care about. Most of Europe is UTC+1 in winter and UTC+2 in summer, the US east coast is UTC-5 or UTC-4, India is UTC+5:30 all year, and Nepal is UTC+5:45.
Why are the hours and minutes reported separately instead of one decimal?
Because a decimal hour would not map back to a real clock. A shift of 0.3 hours is 18 minutes, which looks like a valid decimal but reads as nonsense on a wall clock โ and a third of an hour does not exist in minutes at all.