Calculators
Working Hours Overlap
Find exactly when two to four teams' working hours overlap on a given date, shown in each team's own local time.
How it works
Enter each location and its working hours. Time converts every working day into exact instants for the chosen date, intersects them, and shows the shared window(s) in each local time — with “+1 day” where a team's local date differs.
For a full meeting workflow — durations, a timeline and the closest compromise when there's no overlap — use the Meeting Planner.
Worked example
India 10:00–17:00 and London 11:00–19:00 on 7 October 2026 overlap from 3:30 PM–5:00 PM India, which is 11:00 AM–12:30 PM London.
London and New York (9–5 each) normally share 3 hours. In mid-March, when the US has moved its clocks but the UK hasn't yet, they share 4.
Edge cases handled
- No overlap — stated clearly rather than showing an empty result.
- Overlaps that change size around DST transitions.
- Overnight shifts (end time before start time).
- Overlaps that fall on different calendar dates for each team.