How to Set an Alarm Online
- Choose a time in the picker above.
- Add a label (optional) so you remember what it is for.
- Click Set Alarm. Keep this tab open — the alarm rings at that time with a sound you can snooze or dismiss.
You can set several alarms at once, and they are saved in your browser so they are still here next time you visit. Because the alarm plays in the tab, it needs the tab to stay open — for a reliable wake-up alarm when your device is asleep, a phone alarm app is safer.
Alarm Timer vs Countdown Timer
An alarm timer and a countdown timer both end with a sound, but they are set differently. A countdown timer runs for a length of time — say 20 minutes — while this alarm timer rings at a specific clock time, like 3:30 PM. Set it to the moment you need to be reminded and it goes off then, no mental math about how many minutes away that is. If you would rather count down a duration instead, use a countdown timer; to wake up or catch a specific time, set the alarm above.
Other Clocks & Tools
- Digital Clock — a big current-time display
- Analog Clock — a classic clock face
- Countdown Timers — count down a set number of minutes instead
