Time Zone Calculator
Convert the source clock time to UTC, then apply the destination offset.
This calculator is free to use. Enable JavaScript to enter your values and see a result instantly.
How it works
Convert the source clock time to UTC, then apply the destination offset.
Worked example
12:00 at UTC+3 is 04:00 at UTC−5.
Keep in mind
Daylight-saving changes are not included; choose offsets for the relevant date.