Set the alarm clock for 10:40 pm

 

Leave this tab open — the alarm only rings while the tab stays open.

The alarm goes off in: ::
 
 

10:40 pm across the country

Sydney10:40 pm
Brisbane10:40 pm
Adelaide10:10 pm
Perth8:40 pm
Darwin10:10 pm

Times are worked out live in your browser, so daylight saving is already accounted for.

How to use the online alarm clock

An alarm at 10:40 pm close to midnight is a common way to draw a line under a long day: log off, finish the load of washing, get to bed. Set the time here and it'll ring at 10:40 pm through your laptop or desktop speakers.

Using it is simple: pick a ringtone from the list, press Start, and leave this tab open in your browser. The alarm runs entirely on this page, so closing the browser will stop it from going off. Come back a minute early if you're not sure you trust it yet.

It's free to use, doesn't need an account, and works the same in any modern browser, but it's honestly not meant to replace your phone for anything you can't afford to sleep through. Keep the tab open and the device awake, and it'll ring reliably at the time you set. On a 24-hour clock 10:40 pm is written 22:40, and spoken aloud it's twenty to eleven at night. You'll also see it written 10.40 pm — a full stop instead of the colon means the same time. Whether you would say set alarm for 10:40 pm or put an alarm on for 10:40 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.