Time zones
Time everywhere, and a shared slot
World clock
Enter adds the first result.
About this tool
This tool shows the current time in the cities you pick, along with the UTC offset, the zone abbreviation when there is one (CEST, EDT…), the time of day and the difference from your own time zone. Search works with a city name or an IANA identifier such as America/Chicago, ignores accents, and also understands common French and Spanish city names.
The meeting planner is built for teams spread across countries: pick a date, a start time and a duration from 30 minutes to 2 hours, then see whether the slot lands within each zone’s working hours. It also lists the shared ranges, checked every 30 minutes. Daylight saving changes follow the time zone rules your browser knows about.
How to use it
- Type a city or time zone in “Add a city or time zone” and press Enter to add the first result.
- Reorder or remove cities in the “World clock” panel; “Reset” brings back the default list.
- Under “Plan a meeting”, fill in “Date”, “Start time”, “Reference time zone” and “Duration”.
- Set “Working day starts” and “Working day ends”, then click one of the “Shared slots” ranges to apply it.
Frequently asked questions
Does it handle daylight saving time?
Yes. Times and offsets are computed with the browser’s Intl API, which applies each zone’s rules for the chosen date. A meeting planned in March or October therefore accounts for clock changes that don’t happen on the same day everywhere.
How many time zones can I compare?
Up to 20 at once. By default the list holds your own zone plus Paris, London, New York and Tokyo. Your list, reference zone, duration and working hours are remembered in this browser for your next visit.
How are shared slots found?
The tool walks through the chosen day in the reference zone in 30-minute steps and keeps the start times where the whole meeting fits inside every zone’s working hours. If nothing fits, it tells you so.
Is my data sent to a server?
No. All calculations run in your browser using its built-in time zone data, with no network requests. Saved cities and settings stay in this browser’s local storage.