How to use the online alarm clock
An online alarm clock sounds almost too simple to need explaining, but the useful bit is what happens between setting it and it going off. This section links to 1,440 dedicated pages, one for every minute of the day, so you can jump straight to an alarm for 6:45 am or 11:30 pm without scrolling through a picker or fiddling with sliders.
It runs entirely in your browser tab. That's worth being upfront about: the alarm needs the tab open to keep track of time and play its sound, so if you close the tab, put the laptop to sleep, or the browser gets killed in the background, the alarm won't ring. It's built for situations where you're already sitting at the computer, not as a replacement for your phone's lock-screen alarm overnight.
Where it works well
- Waking up from a short desk nap without setting anything on your phone
- Reminding yourself to leave for a meeting or call at a specific time
- Timing a study block or a load of washing while you keep working nearby
- Cooking, where you want a loud alert without touching a floury phone screen
Each minute page loads instantly and starts counting down as soon as you land on it, with a clear display of how long until the alarm fires. The sound plays through your speakers at the set time and keeps going until you dismiss it, so you don't have to stare at the tab waiting.
If you need something to survive a closed lid or a locked phone, your device's built-in alarm app is the safer choice. This tool earns its keep for the in-between moments at a desk or in a browser tab you're already using, where a quick, no-download alarm is faster than reaching for another device.
Common questions
Does the alarm still ring if I close the browser tab?
No. The alarm relies on the tab staying open in your browser, so closing it, or letting your computer sleep, will stop it from sounding.
Can I set more than one alarm at a time?
Yes, open a separate tab for each minute page you need — each one runs independently, so you can queue up a few reminders through the day.
Will this work on my phone the same way as on my laptop?
It works in a mobile browser, but the same rule applies: the tab has to stay open and active, so it's less reliable than your phone's native alarm app if the screen locks.
Why are there 1,440 separate alarm pages instead of one page with a time picker?
Going straight to a minute-specific page, like the one for 7:15 am, is faster than opening a picker and scrolling, especially if you've bookmarked or searched for that exact time before.
Cookie policy