Set the alarm clock for 5:28 am

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

The alarm goes off in: ::

You can also try the other alarm clocks

Alarm clock for 5:26 am Alarm clock for 5:27 am Alarm clock for 5:29 am Alarm clock for 5:30 am

Going to bed for a 5:28 am alarm

Asleep by 8:13 pm — 6 full sleep cycles, about 9 hours
Asleep by 9:43 pm — 5 full sleep cycles, about 7 hours
Asleep by 11:13 pm — 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.

5:28 am across the country

Sydney	5:28 am
Brisbane	5:28 am
Adelaide	4:58 am
Perth	3:28 am
Darwin	4:58 am

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

How to use the online alarm clock

Tradies, nurses on night shift, and anyone driving to the airport before the birds wake up all end up here around 5:28 am. This alarm rings straight from your browser tab at 5:28 am, loud enough to cut through a quiet house, without needing an app or an account first.

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.

Some people use this alongside a phone alarm rather than instead of it: a louder backup through laptop speakers, or a way to set a reminder without touching a phone at all. It won't survive the tab closing or the device sleeping, so for anything critical overnight, keep a second alarm running as well. On a 24-hour clock 5:28 am is written 05:28, and spoken aloud it's twenty-eight minutes past five in the morning. Timetables and rosters may show it as 05:28, and handwritten notes as 5.28 am. Whether you would say set alarm for 5:28 am or put an alarm on for 5:28 am, the steps are the same: pick a sound, press Start, leave the tab open.

Common questions

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.

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.