How to use the online alarm clock
Late-night study or a last email before bed can run past 11:58 pm without anyone noticing, which is exactly what this alarm is for. Set it here and it'll ring at 11:58 pm through your speakers, a firm enough nudge to actually close the laptop.
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.
Unlike a phone alarm, this one won't ring if you close the tab, put the computer to sleep, or shut the lid, so it suits a desk, a kitchen bench, or anywhere the device stays powered on and awake. It's free to use and doesn't need an account, but it's not built for unattended overnight use. On a 24-hour clock 11:58 pm is written 23:58, and spoken aloud it's two minutes to twelve at night. Written the Australian way that's 11.58 pm, and typed in a hurry it's often 11:58pm. Whether you would say set alarm for 11:58 pm or put an alarm on for 11:58 pm, the steps are the same: pick a sound, press Start, leave the tab open.
Common questions
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.
Why use a browser alarm instead of my phone's built-in one?
Mainly for reliability against silent mode, do-not-disturb, or a phone left charging out of earshot. It's a useful backup or a desk-based alternative, though it depends on this tab staying open rather than running in the background of your phone.
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