Online Clock

A big, clear clock for your screen — six styles, seconds and the date, in full screen if you like.

100% private — runs entirely in your browser. Your data is processed on your device and never sent to the internet.

Clock style

World clock

A clock for your screen

Turn a spare laptop, a tablet, a TV or a classroom projector into a big clock. The time comes from your device and updates every second; the date is shown below it.

Press Fullscreen and the clock fills the whole screen. Tick Keep the screen on and the screen will not go dark or lock while the clock is showing.

Six clock styles

  • Digital — big white numbers on dark blue; easy to read from across a room
  • Flip clock — the classic flip-card look, with each card turning as the time changes
  • Analog — a round clock face with hour, minute and second hands
  • LCD — a retro calculator-style display
  • Neon — glowing pink numbers on a dark background, nice on a TV at night
  • Minimal — thin numbers on a plain background, for a calm desk

Your style, 12/24 hours and other settings are remembered on this device for next time.

World clock

Below the clock, see the time in other cities at a glance — New York, London, Tokyo or any of 60 cities. Each card shows whether it is today, tomorrow or yesterday there and how many hours ahead or behind it is. Cities where it is night are shown dark.

How to use it

  • The clock starts at once with your computer's time
  • Pick a clock style, and choose 24-hour, seconds and the date
  • Press Fullscreen (or double-click the clock, or press F) to fill the screen — press Esc to go back
  • Add or remove cities in the world clock

Frequently asked questions

Is the time on this clock exact?

It shows your device's own clock, which phones and computers keep in sync with internet time servers — usually correct to well under a second.

Can I use it as a screensaver?

Yes. Press Fullscreen and tick Keep the screen on, and the clock stays on screen without the display turning off.

Does it show my time zone?

Yes. Your time zone is shown under the clock, and summer time (daylight saving) is applied automatically.

Can I switch between 12-hour and 24-hour time?

Yes — untick 24-hour clock for AM/PM. The choice is remembered.

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