How ZoneFold works

1. You choose a meeting date and typical working hours.
2. You add participant cities or IANA zones (for example Europe/London).
3. Your browser converts each UTC hour into local time for that date, including daylight saving rules for that zone.
4. We score hours that fall inside working windows higher than evenings or overnight hours, then list the strongest overlaps.

No account is required for the planner. Contact form submissions are stored so we can reply — see the privacy policy.