Is the online alarm clock free?

Yes, it's completely free with no sign-up or download.

Will the alarm ring if I close the tab?

No. The alarm needs the browser tab to stay open to play the sound. Leave UntilClock open in the background.

Online Alarm Clock

Set an alarm for any time. It rings in your local time zone with your chosen sound.

Current time

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Alarm sound

Common wake-up times

5:00 AM 5:30 AM 6:00 AM 6:30 AM 7:00 AM 7:30 AM 8:00 AM 8:30 AM 9:00 AM 9:30 AM

How the alarm works

Choose a time, pick an alarm sound, and press Set alarm. Keep the tab open — when your device clock reaches the set time, the alarm rings. It's perfect for waking up, naps, reminders, and appointments.

Frequently Asked Questions

Is the online alarm clock free?: Yes, it's completely free with no sign-up or download.
Will the alarm ring if I close the tab?: No. The alarm needs the browser tab to stay open to play the sound. Leave UntilClock open in the background.