Timezone Meeting Planner
Pick a time that suits you, add the cities your attendees are in, and see who is at work and who is not. The date is taken as today, and everything is computed in this browser tab.
Meeting time
Who is at work
Private by design. This page has no backend. Time zones and offsets are resolved by the browser's own calendar data on your device — nothing you type is sent anywhere.
How to read the result
Each city shows the moment of your meeting renamed into that city's local time, its offset from UTC, and one of three labels. In work hours means the clock there reads between 9:00 and 17:00 — the rough working day most offices share. Off hours means outside that window. Next day means the meeting date has already rolled over somewhere (and the obverse — a city still on yesterday — shows the day shift in the small line under the time).
The “everyone wins” moment
The summary in the result panel counts how many selected cities fall inside work hours. A time is unusable if the overlap is zero — someone is always up past midnight. The trick for a wide spread is the time around 07:00 UTC: London and Berlin open, New York starts its day, and Tokyo and Auckland are wrapping up or already gone. Move the time and watch the label change city by city.
Daylight saving
The offsets come from the browser's fresh IANA timezone data, computed for today. A city observing daylight saving will show its current offset — “UTC+1” for London in summer, “UTC+0” in winter — and the comparison stays right across the switch, because the browser recomputes per instant rather than keeping a fixed table.
What is not covered
The list is a hand-picked set of the most common business hubs; “Other” zones, half-hour zones and the web's full tz database are not here. The date is taken as today, so a meeting in two months cannot be checked against the exact calendars — useful for a quick negotiation, not for scheduling a fixed date far ahead.
Common uses
Scheduling a call between offices, finding a slot where a distributed team is mostly awake, sanity-checking a confirmation email that said “9:00 UTC”, and explaining to a colleague in Tokyo why 6pm their time means 9am somewhere else.
How to use the Timezone Meeting Planner
- Pick a date and time in your own time zone.
- Add the cities of the people you are meeting.
- Read each city's local time, UTC offset and whether it falls within working hours.
Frequently asked questions
Does it handle daylight saving time?
Yes. Each zone's offset for the chosen date is used, including daylight saving where it applies.
What counts as working hours?
Each attendee's time is flagged when it falls in a typical 9-to-5 window, with warnings for early or late slots.
Can I add many cities?
Yes. Add or remove cities to line up a slot that suits everyone.