Set the alarm clock for 4:40 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 4:38 am Alarm clock for 4:39 am Alarm clock for 4:41 am Alarm clock for 4:42 am

Going to bed for a 4:40 am alarm

Asleep by 7:25 pm — 6 full sleep cycles, about 9 hours
Asleep by 8:55 pm — 5 full sleep cycles, about 7 hours
Asleep by 10:25 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.

4:40 am across the country

Sydney	4:40 am
Brisbane	4:40 am
Adelaide	4:10 am
Perth	2:40 am
Darwin	4:10 am

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

Online alarm clock for 4:40 am

You are watching the clock while the baby sleeps, waiting for the scheduled 4:40 am feed rather than guessing when it is due. Set the alarm for 4:40 am and leave enough time to prepare the bottle, feeding chair or cloths quietly. With 5:00 am only twenty minutes later, a clear alert helps keep the overnight routine from drifting towards the round hour.

While you wait for the baby’s feeding time, keep this alarm page in the foreground where you can see that it remains set. A browser may restrict activity after a page has spent time in the background, especially when power-saving settings take over. If the browser is closed or the phone falls asleep, the alarm cannot sound, so it should not be the only cue for the baby’s feed. Leave the phone connected to power, keep the sound audible and use a separate alarm if missing 4:40 am would disrupt the routine.

After the feed, make the return to sleep as straightforward as possible: place anything needed for settling within reach beforehand and keep the room dim. Avoid checking bright notifications while waiting for 4:40 am, and decide in advance who will resettle the baby if another adult is sharing the night. That preserves more of the remaining sleep before the household begins its early-morning routine.

Common questions

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.

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.