Set the alarm clock for 7:40 pm

 

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

The alarm goes off in: ::
 
 

7:40 pm across the country

Sydney7:40 pm
Brisbane7:40 pm
Adelaide7:10 pm
Perth5:40 pm
Darwin7:10 pm

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

How to use the online alarm clock

If evenings tend to slip away in front of a screen, setting an alarm for 7:40 pm gives you a fixed point to stop and do something else. This page rings at 7:40 pm through your device's speakers until you dismiss it.

Choose a sound before you press Start — something like a chime or a classic bell tends to work better than anything too gentle. Once it's running, the countdown happens right here in the browser, which means the tab needs to stay open in the background rather than being closed.

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 7:40 pm is written 19:40, and spoken aloud it's twenty to eight in the evening. Written the Australian way that's 7.40 pm, and typed in a hurry it's often 7:40pm. Setting the alarm to 7:40 pm tomorrow morning works the same way: if the time has gone for today, the count runs through to it.

Common questions

Will the alarm still ring if I close the browser tab?

No. The alarm only runs while this tab stays open — closing it, or closing the browser entirely, stops the countdown before it can ring. Keep the tab open in the background if you need it to go off later.

Does the alarm work if my laptop goes to sleep?

Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.

Do I need to create an account or download anything?

No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.

Can I change the alarm sound?

Yes, there's a short list of tones to choose from before you press Start. Pick whichever one you're most likely to actually hear — softer sounds are easier to sleep through than a firm chime or bell.