Online Alarm Clock
Set a one-time alarm or a weekly routine. Keep up to eight named alarms together, with snooze and a sound for each.
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Uses this device's clock.
Next alarm
Set an alarm to see its exact date and time.
Keep this page open and your device awake. Sleeping, locking or closing the browser can prevent alarms. Use a device alarm when you must be woken.
Set an alarm
Your alarms
Each alarm is independent. Saved and shared setups always need arming after you open the page.
No alarms yet. Choose a time above to get started.
One-time, weekday and multiple alarms
Choose the next occurrence of a time, a specific future date, or repeat days such as Monday through Friday. Set alarm starts it in this tab. Add without arming lets you prepare several alarms first. Stop all alarms cancels every pending ring and repeat in this tab.
What happens when an alarm rings?
Snooze postpones it by your chosen number of elapsed minutes. Dismiss ends that ring; a weekly alarm then schedules its next occurrence. Sound stops after two minutes. If several alarms ring together, all their labels appear and one sound plays at a time. Stopping an alarm also stops its future repeats until you arm it again.
Will an online alarm work while the computer sleeps?
A browser cannot guarantee that. Keep the tab visible, check sound and power settings, and use Keep screen awake where supported. The browser can release that request. A device alarm is the appropriate choice for an essential wake-up. If this page notices an alarm more than a minute late, it marks it missed without playing an old alert.
What about daylight saving?
The alarm keeps its selected time zone. Repeating and next-occurrence alarms skip nonexistent local times when clocks move forward. For a repeated clock time, your first/second choice determines one ring. Specific-date alarms reject nonexistent times. Snooze is elapsed time, not a new wall-clock schedule. Time and time-zone rules come from this device and browser.