Time Zone Converter
Free Time zone Calculator for time zones. Enter your stats to get performance metrics and improvement targets. Get results you can export or share.
Reviewed by Daniel Agrici, Founder & Lead Developer
Reviewed by Daniel Agrici, Founder & Lead Developer
Formula
Target Time = Source Time + (To_Offset - From_Offset)
UTC offsets: EST=-5, CST=-6, PST=-8, GMT=0, CET=+1, IST=+5.5, JST=+9, AEST=+10.
Worked Examples
Example 1: NYC to London
Problem:14:30 EST (UTC-5) to GMT (UTC+0)
Solution:14:30 + 5 hours = 19:30
Result:19:30 GMT
Example 2: Crossing midnight into the next day
Problem:Convert 22:00 in Los Angeles (PST, UTC-8) to Tokyo (JST, UTC+9)
Solution:Offset difference = 9 - (-8) = 17 hours\n22:00 + 17:00 = 39:00 → 39:00 - 24:00 = 15:00 the next day
Result:15:00 JST (next day)
References
Reviewed by Daniel Agrici, Founder & Lead Developer · Editorial policy