Hour Timers: Free Online Countdowns with Alarm

2 Hour Timer 1 Hour Timer 3 Hour Timer 4 Hour Timer 6 Hour Timer 24 Hour Timer 5 Hour Timer 7 Hour Timer 8 Hour Timer 10 Hour Timer 100 Hour Timer 12 Hour Timer 9 Hour Timer 48 Hour Timer 72 Hour Timer

Hour Timers: Pick a Time and Press Start

Longer timers from 1 hour up to several days, for exams, deep-work sessions, slow cooking, fasting windows and anything else that takes a while. Keep the tab open and they will keep counting.

Every timer shows the time left in your browser tab and plays a chime at zero. It goes by your device's clock, so it stays on time even if you switch tabs.

Stays on time

Timers go by your device's clock, so they don't slow down in a background tab.

160+ ready-made timers

Seconds, minutes, hours, stopwatches, plus timers for cooking, fitness and study.

A chime you will hear

A clear chime plays the moment the countdown hits zero, with nothing extra to load.

Phone, desktop or fullscreen

Fits your phone screen, and goes fullscreen for TVs, classroom boards and monitors.

Frequently Asked Questions

How do I start a timer?

Tap any timer in the list, for example the 5 minute timer, 10 minute timer or the stopwatch, then press Start. You can also type in the search box to find a time quickly.

Do the timers keep working in a background tab?

Yes. They go by your device's clock, so switching tabs doesn't slow them down. The time left also shows in the tab title. Just don't close the tab.

Will I hear an alarm when time is up?

Yes. A short chime plays as soon as the countdown reaches 00:00. Make sure your device isn't muted.

Are the timers free on phone and desktop?

Yes. Every timer and stopwatch is free to use in your browser, with no app and no account.