Set the alarm clock for 7:30 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 7:30 am alarm

  • Asleep by 10:15 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 11:45 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 1:15 am — 4 full sleep cycles, about 6 hours

A sleep cycle runs about 90 minutes, and most people take around 15 minutes to drop off. Waking at the end of a cycle feels easier than waking in the middle of one.

7:30 am across the country

Sydney7:30 am
Brisbane7:30 am
Adelaide7:00 am
Perth5:30 am
Darwin7:00 am

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

How to use the online alarm clock

Mornings between six and eleven are when most households actually need an alarm, not the phone buried in a bag by the door. Set this one for 7:30 am, pick something loud enough to cut through breakfast noise, and it'll ring right on 7:30 am through your laptop or desktop speakers.

Select a sound, hit Start, and that's the whole setup. The countdown runs inside this browser tab rather than on your device's operating system, so it needs to remain open, on a phone or laptop, until the alarm actually goes off.

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 7:30 am is written 07:30, and spoken aloud it's half past seven in the morning. You'll also see it written 7.30 am — a full stop instead of the colon means the same time. Setting the alarm to 7:30 am 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.