Set Alarm for 20 minutes from Now
Need an alarm that rings in 20 minutes? Set it instantly with Online Alarm Clock. The alarm will be automatically calculated based on the current time. No app needed.
About the 20 minutes Alarm
The 20 minutes alarm is perfect for quick reminders and short tasks. Simply open this page and your alarm is automatically set for 20 minutes from the current time. The alarm works in your browser and will alert you with a sound when the time is up.
Keep this tab open and you will be alerted with a loud sound when 20 minutes has passed. Choose from multiple alarm sounds and adjust the volume to your preference.
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How does the 20 minutes alarm work?
This page automatically calculates the alarm time by adding 20 minutes to the current time. Click the start button and the alarm is set.
Will the alarm ring if I close the tab?
No, you need to keep the browser tab open for the alarm to work. The alarm runs entirely in your browser.
Can I change the alarm sound?
Yes, multiple alarm sounds are available including classic bell, bird songs, and nature sounds.
Is this alarm free?
Yes, Online Alarm Clock is completely free. No sign-up required, unlimited use.
