Online Alarm Clock
Set browser alarms with snooze, sound, and notifications
Note
- If your device sleeps, the alarm may not ring.
- For critical use, please use your OS alarm app.
- Sound and notifications depend on browser permissions.
Choose the time, repeat days and optional label, then select Add and check the next alarm.
Shares the next enabled alarm without its label or running state. The URL may be received by the server.
Keep one alarm tab open. On return, newly detected alarms up to 5 minutes late ring; older ones are shown as missed. Already waiting alarms stay queued. Local time uses the device time zone: during daylight saving changes, skipped times move forward by the gap and repeated times use the earlier occurrence.
Highlights
- Always-on analog and digital current time display.
- Next alarm and remaining time update continuously.
- Add multiple alarms with weekday repeats.
- Snooze, notifications, and fullscreen for focus.
How to use
- Choose the time, repeat days and optional label, then select Add and check the next alarm.
- Enable sound to play alarms. Test sound.
Alarm setup for repeat schedules and real-world wake-up use
This page runs browser alarms with labels, repeat days, snooze, notifications, sound, and fullscreen support. It works well for desks, study sessions, and backup reminders, but device sleep, mute, or aggressive background throttling can delay alerts. For critical wake-up or medication use, keep your OS alarm enabled too. Pair it with Timer for countdown work, Fullscreen Clock for always-on display, and Sleep Cycle Calculator when you are planning bedtime rather than a browser reminder.
Best-fit uses
- Create recurring weekday alarms with labels.
- Test sound and notification permission before relying on alerts.
- Use fullscreen when the current time and next alarm should stay visible.
Limits to remember
- Share URLs keep settings, not live alarm state.
- Sound and notifications still depend on browser and OS policies.
- Web alarms are not a substitute for mission-critical safety alarms.
FAQ
Do I need to install an app?
No. This alarm runs directly in your browser with no extra installation.
Can I create multiple alarms?
Yes. You can add multiple alarms and set repeat weekdays for each one.
Will it ring if my device sleeps?
Sleep mode or aggressive background throttling can delay alarms. For critical timing, also use your OS alarm.
Does the share URL save everything?
It saves key display and alarm settings, but not the live running state.
Can I enable notifications?
Yes. Grant browser notification permission and test sound before relying on it.