Time Zone Meeting Planner
Enter one meeting date and time in a reference time zone and see the matching local date and time in up to six IANA time zones at once, so you can pick a slot that works for everyone.
Compares one meeting time across time zones. It does not create calendar events, send invitations, or detect where participants are.
Time-zone and daylight-saving rules come from the time-zone data available in your browser.
How to use it
- Choose the meeting date and time, and the reference time zone they are given in
- Add the time zones you want to compare, up to six in total
- Optionally set the working-hours range to highlight
- Select Compare times and read the local time in each zone
- Use Copy schedule to share the result as plain text
All calculation runs in your browser using its own time-zone database: daylight-saving changes are applied automatically for the chosen instant, the effective UTC offset is shown per zone (including unusual offsets such as India's +05:30 and Nepal's +05:45), and each zone is marked as the same day, the next day or the previous day relative to your reference. If the local time you enter falls in a daylight-saving gap it is refused as nonexistent, and if it falls in a fall-back overlap it is refused as ambiguous, rather than being shifted silently. An optional working-hours highlight (default 09:00-17:00, adjustable) marks which zones sit inside typical office hours and gives a plain count. Everything is local: no account, no calendar connection, no invitations, no network request, and nothing is stored. This is a comparison view, not a scheduler.
FAQ
Enter the date and time and the reference time zone they belong to, add up to six zones to compare, then select Compare times. The tool shows the matching local date and time, weekday, UTC offset and day difference for each zone.
Yes, for the specific instant you enter. It uses your browser's time-zone data, so the offset shown for each zone reflects whether daylight saving was in effect at that moment, not a fixed year-round offset.
When clocks spring forward, an hour of local time never happens, so that time is refused as nonexistent. When clocks fall back, an hour repeats, so that time is refused as ambiguous. Pick a time outside the transition.
Yes. Zones such as Asia/Kolkata (+05:30), Asia/Tehran (+03:30) and Asia/Kathmandu (+05:45) are converted to the exact minute, because the conversion is based on your browser's time-zone rules rather than whole-hour assumptions.
No. The date, time, time zones, working hours and results stay in your browser. There is no account, no calendar integration, no invitation sending and no network request, and nothing is written to browser storage.