Online Digital Clock
A large live digital clock with seconds, AM/PM or 24-hour time, the date, any time zone and world clocks, with full screen.
Your time zone
World clocks
Clock settings
Shows your device’s clock; settings are kept in this browser only.
Change the values and press Calculate to work out your own figures.
Type a time to see it in words and on both clocks.
Show the working
- Hour hand: 30° per hour + 0.5° per minute = 30 × 6 + 0.5 × 16 = 188°
- Minute hand: 6° per minute = 6 × 16 = 96°
- Between: |188° − 96°| = 92°
How to use it
Type a time to see it in words and on both clocks.
Drag either hand, use the arrow keys on a focused hand, or type a time. Typed times can be 24-hour (15:20) or 12-hour with am/pm (3:20 pm); seconds are optional.
Key facts
12-hour time = 24-hour hour mod 12 (0 shown as 12), AM before noon and PM from noon
Your device's time
The clock shows the time your device keeps. Phones and computers usually set it from the network, so it is normally right to within a second; if it looks off, check your device's automatic time setting.
12-hour and 24-hour time
From 1 PM add 12 to get 24-hour time (3:20 PM is 15:20); 12 AM is 00:00 and 12 PM is 12:00.
Questions
How do I show 24-hour time?
Tick 24-hour time under Clock settings.
Can I make it full screen?
Yes: press Full screen; press it again or Esc to leave.
Formulas
12-hour time = 24-hour hour mod 12 (0 shown as 12), AM before noon and PM from noon
Sources
Limitations
- A 12-hour dial: the hands can't tell AM from PM, so the widget has an AM/PM switch.
- Times in words follow common British and US usage ("quarter past", "ten to").