World Clock
← All toolsA row of cards, each ticking the real current time in a timezone you choose — with the date, the UTC offset, and a small day/night strip showing whereabouts in its day that city currently sits. Add or remove cities freely; your selection is remembered for next time.
World Clock
Live
How to use the World Clock
- Pick a city from the dropdown and tap Add city to add its card to the grid.
- Tap the ✕ on any card to remove it.
- Each card updates every second — no need to refresh.
- Your chosen cities are saved in this browser, so they're still there next time you open clocklab.
FAQ
- Why do some cities show unusual offsets like +5:30?
- Not every timezone sits on a whole hour from UTC — India Standard Time, for example, is UTC+5:30. clocklab reads each timezone's real offset directly, including those half- and quarter-hour cases.
- What does the moving dot on the strip mean?
- It marks how far that city is through its current day, from midnight (far left) to the next midnight (far right) — a fast way to tell if it's the middle of the night somewhere before you call.
- Does this account for daylight saving time?
- Yes — times are computed from the IANA timezone database via the browser's own Intl API, which already knows each region's daylight saving rules and transition dates.
- Where is my city list saved?
- In this browser's local storage, on this device only — nothing is sent anywhere or synced across devices.
