How to use the online alarm clock
Whether 11:27 pm marks the start of a night shift or the point you've promised yourself you'll finally stop for the day, this tool rings at 11:27 pm straight from your browser. No sign-up needed, just a tab left open until it fires.
Set your preferred sound, press Start, then leave the tab where it is. Everything happens inside the browser — no background app, no notification pushed from a server — so an open tab is what actually makes the alarm ring at the right time.
Compared to a phone, this alarm has one job and nothing else competing for attention — no messages, no app switching. It's free and doesn't ask for sign-up, but it only works while the tab is open and the device stays awake, so it suits daytime use at a desk better than an overnight bedroom alarm. On a 24-hour clock 11:27 pm is written 23:27, and spoken aloud it's twenty-seven minutes past eleven at night. You'll also see it written 11.27 pm — a full stop instead of the colon means the same time. Whether you would say set alarm for 11:27 pm or put an alarm on for 11:27 pm, the steps are the same: pick a sound, press Start, leave the tab open.
Common questions
What happens once the alarm goes off?
It rings through your device's speakers on a loop until you stop it from this page. There's no separate app notification, so make sure your volume is turned up before you rely on it.
Is this alarm accurate across daylight saving time?
It uses your device's local clock, so as long as your computer's time and date settings are correct, it'll adjust automatically when daylight saving time starts or ends.
Can I use this on my phone instead of a laptop?
Yes, it works in a mobile browser the same way, but phones are more likely to lock the screen or sleep, which can stop the alarm from ringing. A laptop or desktop tends to be more reliable for this.
Can I set more than one alarm at a time?
This page is built around a single alarm at a time. For multiple alarms, open a separate tab for each one and set a different time in each, keeping every tab open until it's rung.
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