Meeting Time Zone Overlap Calculator
Meeting Time Zone Overlap Calculator
Enter each location's UTC offset (hours from UTC) and typical work-hour window, and this tool finds the overlapping hours when both locations are working — the overlap is shown in both locations' local times.
This calculator uses fixed hour offsets rather than a full time zone database, so you enter whatever offset is currently in effect at each location — remember to adjust manually for daylight saving time if either location observes it. For example, New York (UTC-5, working 9-17) and London (UTC+1, working 9-17) share a working overlap of roughly four hours in the New York afternoon, which is exactly the kind of gap this tool is built to surface quickly when scheduling a call across distributed teams.
- Fixed UTC offsets: this calculator uses fixed hour offsets rather than a full time zone database — enter the offset currently in effect at each location (adjusting manually for daylight saving time if applicable).
- Example: New York (UTC-5, 9-17) and London (UTC+1, 9-17) share a 3-hour overlap (14:00-17:00 New York / 19:00-22:00 wait — actual overlap is 9-12 NY / 14-17 London depending on offsets).
- No overlap: if the working hours don't intersect at all, the calculator reports zero overlap hours.
How do I find my location's current UTC offset?
Search "[your city] UTC offset" — remember it may change with daylight saving time, so update it if needed.
What if there's no overlap at all?
The calculator will show 0 overlap hours and "No" for has-overlap, meaning you'll need to adjust someone's hours or find an asynchronous solution.
Meeting Time Zone Overlap Calculator
Enter each location's UTC offset (hours from UTC) and typical work-hour window, and this tool finds the overlapping hours when both locations are working — the overlap is shown in both locations' local times.
This calculator uses fixed hour offsets rather than a full time zone database, so you enter whatever offset is currently in effect at each location — remember to adjust manually for daylight saving time if either location observes it. For example, New York (UTC-5, working 9-17) and London (UTC+1, working 9-17) share a working overlap of roughly four hours in the New York afternoon, which is exactly the kind of gap this tool is built to surface quickly when scheduling a call across distributed teams.
- Fixed UTC offsets: this calculator uses fixed hour offsets rather than a full time zone database — enter the offset currently in effect at each location (adjusting manually for daylight saving time if applicable).
- Example: New York (UTC-5, 9-17) and London (UTC+1, 9-17) share a 3-hour overlap (14:00-17:00 New York / 19:00-22:00 wait — actual overlap is 9-12 NY / 14-17 London depending on offsets).
- No overlap: if the working hours don't intersect at all, the calculator reports zero overlap hours.
How do I find my location's current UTC offset?
Search "[your city] UTC offset" — remember it may change with daylight saving time, so update it if needed.
What if there's no overlap at all?
The calculator will show 0 overlap hours and "No" for has-overlap, meaning you'll need to adjust someone's hours or find an asynchronous solution.