See what time it is anywhere, and find the hours that work for everyone.
Search above to add a place. Everything runs on your device — nothing you type leaves the page.
Shaded area is where it’s currently night. Your location is shown in green.
More tools · by niek.li
A clear world clock. Search for any city to see its current time, the day there, and how far ahead or behind it is from you. The strip below lines everyone's hours up so you can spot a slot where all the places you've added are awake — the columns where everyone is free are outlined.
Data. All time conversion is done by your browser's built-in time-zone database, which follows the IANA tz database and handles daylight saving and unusual offsets automatically. The city list (names, locations and zones) is bundled with the app from the open World Cities dataset, and the day/night map uses public-domain Natural Earth outlines. Nothing is fetched while you use it.
Privacy. Everything runs on your device — your own time zone comes from your browser's locale, never from your location, and the cities you add are saved only on this device. Nothing you type is sent anywhere, there's no server, and there are no accounts, tracking, or ads. See the full privacy page for what every tool sends and where.