Meeting Time Zone Planner – Find Working-Hour Overlap

Plan a meeting across several time zones

Choose the organiser's local date, proposed time and time zone, then add three participant zones. The planner converts one meeting instant into the local date and time for every selected location. It also checks whether each result falls inside the preferred daily hours you set. This makes an international client call, interview, webinar or remote-team meeting easier to assess without doing offset arithmetic by hand.

Find the working-hour overlap

The proposed-time table answers “what time is this meeting for everyone?” The second table searches the organiser's selected date in 30-minute steps. When at least one slot falls inside the preferred window in every zone, the planner shows the first eight complete-overlap choices. If no full overlap exists, it shows the closest options: the slots that keep the most zones inside the window while minimising how far the others fall outside it.

The preferred start is included and the end is excluded. With a 09:00–17:00 window, 09:00 is considered within hours and 17:00 is not. The same window is applied in each location's local clock. It is a practical comparison, not a claim that every participant actually works those hours.

Worked multi-zone example

On 15 June 2026, 14:00 in Dublin is also 14:00 in London and 09:00 in New York. All three fall inside a 09:00–17:00 window. Tokyo is several hours ahead, so adding it can remove the complete overlap and force someone toward an early or late call. The closest-times result makes that trade-off visible rather than hiding it behind one “best” answer.

Daylight-saving time is date specific

A fixed statement such as “New York is five hours behind Dublin” is not reliable throughout the year. Regions can start or finish daylight saving on different dates, and some regions do not change clocks. This planner converts the exact selected date through the IANA time-zone rules available in the browser. It also rejects a local time that does not exist when clocks jump forward. During a repeated autumn hour, confirm the intended offset in the official calendar invite because the same wall-clock label can occur twice.

Fair scheduling for global teams

When there is no complete working-hour overlap, avoid making one region carry every inconvenient meeting. Rotate early and late calls, shorten meetings that sit near the edge of the day, or split a large meeting into regional sessions. For recurring meetings, test more than one date: daylight-saving changes can alter the overlap even when the displayed local time normally stays fixed.

The planner checks clock hours only. It does not know participant availability, lunch breaks, weekends, public holidays, leave, school schedules or company shutdowns. Check the proposed date against the calendars and working policies that actually apply, then put every participant's local time in the invitation.

Private browser calculation

The dates, times and zones are processed in this browser. Day Calculator does not receive or store the proposed meeting. Time-zone results depend on the IANA database supplied by the browser or operating system, so an outdated device may not include a recent government rule change. For an important event, confirm the final instant in the calendar service used to send the invitation.

Choose the right time tool

Use the Time Zone Converter when only two zones need a direct conversion. Use the Time Duration Calculator to calculate how long a call lasts, or Day of the Week Calculator to check a future date before scheduling.

Frequently asked questions