Set the alarm clock for 8:16 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 8:14 am Alarm clock for 8:15 am Alarm clock for 8:17 am Alarm clock for 8:18 am

Going to bed for a 8:16 am alarm

Asleep by 11:01 pm — 6 full sleep cycles, about 9 hours
Asleep by 12:31 am — 5 full sleep cycles, about 7 hours
Asleep by 2:01 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.

8:16 am across the country

Sydney	8:16 am
Brisbane	8:16 am
Adelaide	7:46 am
Perth	6:16 am
Darwin	7:46 am

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

Online alarm clock for 8:16 am

You’re finishing your last lap and leaving the pool at 8:16 am, with enough time to change, gather your wet gear and head towards work before 9:00 am. Set the alarm for the moment you need to get out, rather than the time you hope to be completely ready, so it marks a clear end to the session.

Pool acoustics can swallow a browser alarm beneath splashing, ventilation and voices, so raise the volume before you start and keep the speaker away from towels or clothing. A quick sound check from beside the water gives you a more realistic idea of whether you will hear it. If the browser is no longer running or your screen has gone into a deep sleep, the pool alarm may never sound, leaving you late to change and depart.

An early swim can make breakfast feel urgent, but leaving at 8:16 am is easier when food and drink are already sorted. Have water available for the trip, and pack something simple that can be eaten neatly after changing, such as fruit, yoghurt or toast. Save a larger cooked breakfast for a time when you can sit down, rather than squeezing it between the change room and the morning commute.

Common questions

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.

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.