Free tool
Online Clock – Exact Time Now
A big, full-screen digital and analogue clock with seconds, the date and your time zone – or the time anywhere in the world.
An exact clock for any screen
This clock shows the current time to the second, using your device’s clock and the official IANA time zone rules – so daylight saving changes are always right. Switch between a digital and an analogue face, choose 12- or 24-hour time, turn on dark mode for a bedside or wall display, and press full screen to use any laptop, tablet or old phone as a desk clock.
Search any city to show its local time instead of yours. Your choice is kept in the page address, so you can bookmark a clock for New York, Tokyo or anywhere else.
Frequently asked questions
How accurate is the online clock?
It shows your device’s system time, which is normally synchronised with internet time servers to within a fraction of a second. If the clock looks wrong, check that your device sets the time automatically.
Can I use it as a full-screen desk clock?
Yes. Press Full screen (or F), choose dark mode for night use, and the clock fills the whole screen. Many people use an old tablet or laptop this way.
Can I show the time in another city?
Yes – search for any city above. The clock then shows that city’s local time, date and time zone, including daylight saving time.