WatchTimeMeeting Planner
Add up to five cities and see a 24-hour bar for each. Work hours (9am–5pm local) are shaded, and the hours where every city overlaps are highlighted green — pick a slot from there and everyone's in business hours.
How the overlap is calculated
Each city's 24-hour bar is built from your browser's own IANA time zone data, the same source every other tool on this site uses — so daylight saving is handled automatically and the bar for a city on summer time will shift a slot the moment it changes. "Work hours" here is fixed at 9am–5pm local for a simple, predictable read; if your team runs earlier or later hours, treat the highlighted band as a starting point and adjust by eye.
The green overlap cells only appear where every city currently added has a work-hour cell in that same slot. Add or remove a city and the overlap recalculates instantly — nothing is sent to a server, so there's no limit on how many combinations you try.
Frequently asked questions
What if there's no green overlap at all?
Some combinations — say, San Francisco and Singapore — have little or no shared 9-to-5 window. When that happens, someone has to take an early morning or evening call. Widen your own availability window mentally and look for the smallest gap rather than a perfect overlap.
Can I plan for a future date instead of today?
This version compares work hours for today's date. If you're scheduling near a daylight-saving change and the two sides don't switch on the same day, double-check the actual date against the time zone converter for that specific day.
Why only five cities?
Past five, the bars get hard to read at a glance and the point of the tool — a quick visual read — breaks down. For larger groups, find the best window for your five key locations first, then check outliers individually with the time zone converter.