Time Zone Offset Calculator
Enter a time and the source and target UTC offsets to convert it.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
Converting a time between UTC offsets means adding or subtracting the difference between the two offsets — for example, moving a time from UTC-5 (New York) to UTC+1 (Paris) means adding 6 hours. The tricky part isn't the math itself but tracking whether that shift pushes the clock time past midnight, landing the result on the next calendar day, or pulls it back past midnight onto the previous day.
This calculator handles both the offset math and the day-rollover logic in one step, which is genuinely useful for scheduling international meetings, coordinating remote teams, or working out flight arrival times across time zones — situations where “just add the hours” quietly gets the date wrong if you're not careful near midnight.
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