Possible65/100
2026-06-30 14:00 UTC
Fairness: Difficult for Seoul
- Seoul
Tue, Jun 30, 23:00 · Outside working hours · Same day - New York
Tue, Jun 30, 10:00 · Preferred · Next day - London
Tue, Jun 30, 15:00 · Preferred · Same day
WorldTime Grid tool
Working Hours Overlap Calculator
Find candidate meeting times for two to ten cities using local work preferences.
Search by a localized city name, country, English name or IANA time zone.
Preferences are stored only in this browser.
Recommended meeting times
Possible60/100
2026-06-30 13:00 UTC
Fairness: Difficult for Seoul
- Seoul
Tue, Jun 30, 22:00 · Outside working hours · Same day - New York
Tue, Jun 30, 09:00 · Working hours · Next day - London
Tue, Jun 30, 14:00 · Preferred · Same day
Possible59/100
2026-06-30 13:30 UTC
Fairness: Difficult for Seoul
- Seoul
Tue, Jun 30, 22:30 · Outside working hours · Same day - New York
Tue, Jun 30, 09:30 · Working hours · Next day - London
Tue, Jun 30, 14:30 · Preferred · Same day
Time-zone rules can change through political decisions. Results depend on the browser's IANA time-zone data and may be less reliable for distant future or historical dates.
Method and limitations
This tool uses named IANA time zones and calculates the applicable offset for the selected date. Time-zone rules can change, browser data versions can differ, and important future events should be confirmed in participants’ calendars.
No account or server database is required. Values entered into the calculator remain in the browser unless you deliberately create and share a URL.