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Call Finder

Time Zone Call Finder

Choose two to four cities and your waking hours. The chart shows each city’s comfortable hours in teal and the shared window in blue.

Clay day and night globes linked by a curved line and a glowing disc

Your choices are saved only in this browser.

Shared call windows

AwakeRestingEveryone awake

The chart covers 36 hours from City 1’s midnight, so windows that pass midnight are not cut off. The dashed line marks the end of the first day.

    How to use it

    Time zone data comes from your browser, so daylight saving changes are handled for today’s date. For a longer call, pick a window at least twice as long as the call. Ready to invite people? Take the result to the Group Call Planner.