Popular Alarm Presets
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About the Online Alarm Clock
TimeDilo’s Online Alarm Clock is a free, web-based utility that lets you configure an alarm directly inside your browser. No download, plugin, or account creation is required. Choose between a standard clock or authentic retro 7-segment digital display, select from multiple clear alarm signals, and customize text colors.
How to set an online alarm
- Click the Set Alarm button above or click any time preset.
- Set the hour and minute for the desired ringing time.
- Enter an optional alarm title (e.g. "Wake Up" or "Medication").
- Select your preferred alarm tone and preview the sound volume.
- Click Set Alarm to activate your scheduled alert.
Practical tips for reliable alerts
Keep this page open, your device awake, and your sound on so you can hear the alert. When supported by your device, TimeDilo automatically requests a screen wake lock while an alarm is active to keep your screen illuminated and awake.
Frequently Asked Questions
Will the alarm clock ring if I close the tab?
No. Because web browsers run code locally inside the open webpage, the tab must remain open for the alarm to sound.
Can I use this alarm clock offline?
Yes! TimeDilo synthesizes sound waves directly in the browser via the Web Audio API without needing external network servers once loaded.