Set the alarm clock for 8:21 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 8:19 am Alarm clock for 8:20 am Alarm clock for 8:22 am Alarm clock for 8:23 am

Going to bed for a 8:21 am alarm

Asleep by 11:06 pm — 6 full sleep cycles, about 9 hours
Asleep by 12:36 am — 5 full sleep cycles, about 7 hours
Asleep by 2:06 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.

8:21 am across the country

Sydney	8:21 am
Brisbane	8:21 am
Adelaide	7:51 am
Perth	6:21 am
Darwin	7:51 am

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

Online alarm clock for 8:21 am

You’re watching the clock at 8:21 am, waiting for the right moment to water the front garden before daytime restrictions begin. Setting the alarm lets you prepare the hose, check which beds need attention and stay inside until then. There is still room before 9:00 am to get everything ready without starting the watering early.

While you wait to tend the front garden, this alarm page can remain behind another tab as you check the weather or finish a small job. Keep the browser open and allow sound; a background tab may be muted, suspended or cleared by your browser. The front garden alarm will not sound if you close the page or let your phone or computer go to sleep, so use a built-in alarm as backup if missing the time would disrupt your plans.

As the neighbourhood moves further into the morning, traffic, mowers and people heading out can make a quiet alarm harder to notice. At 8:21 am, set the volume above the surrounding noise and leave the phone somewhere audible from the kitchen or front path. A distinct tone also helps separate the watering reminder from ordinary notifications while you gather what you need.

Common questions

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.

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.