Set the alarm clock for 6:28 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 6:26 am Alarm clock for 6:27 am Alarm clock for 6:29 am Alarm clock for 6:30 am

Going to bed for a 6:28 am alarm

Asleep by 9:13 pm — 6 full sleep cycles, about 9 hours
Asleep by 10:43 pm — 5 full sleep cycles, about 7 hours
Asleep by 12:13 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.

6:28 am across the country

Sydney	6:28 am
Brisbane	6:28 am
Adelaide	5:58 am
Perth	4:28 am
Darwin	5:58 am

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

Online alarm clock for 6:28 am

Finishing up and heading out at 6:28 am leaves a useful margin before a morning flight from an airport outside the city. With 7:00 am approaching, this alarm can mark the moment to stop checking bags and paperwork, collect the last essentials and leave rather than letting small jobs delay the trip.

A departure alarm only helps if the screen running it remains active until the chosen time. Phones and laptops may enter sleep mode earlier, especially after sitting untouched while luggage is being carried out. This browser alarm will not sound once its session is closed or the equipment has gone to sleep, so relying on it alone could put the airport departure at risk. Keeping the page running and the equipment awake, with audible volume, gives the alert a chance to play as intended.

Leaving this early can mean lighter traffic, but an airport beyond the city still requires a realistic driving allowance. The route may include overnight roadworks, reduced-speed sections or limited public transport connections before the morning timetable begins. A sensible departure estimate includes the full trip, parking or drop-off time and the walk to the terminal, with a separate phone alarm as backup.

Common questions

Is there a cost to use this?

No, it's free, with no sign-up and no limit on how many times you set it. It just needs the tab left open until the time you've chosen arrives.

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.