Free Time Zone Calculator - Convert Global Times
Convert times across global time zones instantly and plan international meetings.
Formula & Methodology
The Time Zone Calculator takes your source time and adds the difference between the target city's UTC offset and your source offset. When the result crosses midnight it adjusts the date by a day, so you see the correct local time and day in the destination.
- Target Time = Source Time + (Target UTC Offset − Source UTC Offset)
- Adjust ±1 day when the result crosses midnight
Worked Example
Using the Time Zone Calculator: apply the formula above to your input values. For instance, Target Time = Source Time + (Target UTC Offset − Source UTC Offset), then Adjust ±1 day when the result crosses midnight. The tool performs each step instantly and shows the result.
Frequently Asked Questions
How does the time-zone converter work?
It shifts a chosen time by the offset between two zones, accounting for their difference in hours.
Does it handle daylight saving time?
Time-zone offsets change during daylight saving periods, so confirm the current DST status for precise scheduling.
How do I schedule a meeting across time zones?
Enter the time in one zone to see the equivalent in another, helping you pick a slot that works for everyone.