Set the alarm clock for 6:31 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 6:31 am alarm

  • Asleep by 9:16 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 10:46 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 12:16 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.

6:31 am across the country

Sydney6:31 am
Brisbane6:31 am
Adelaide6:01 am
Perth4:31 am
Darwin6:01 am

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

Online alarm clock for 6:31 am

While setting out the hose and checking the tap fittings, set the alarm for 6:31 am so the garden is ready to be watered before hot-hour restrictions apply. Starting then leaves a useful window before 7:00 am for moving a sprinkler, reaching dry patches and packing the gear away without rushing.

For this early garden job, match the alarm sound to where the phone will sit. A gentle tone suits a quiet bedroom while you are already awake and preparing, but a more persistent sound makes sense if the phone is near an open door, running water or outdoor activity. Keep the volume clearly audible from the yard. If the phone sleeps or this page is no longer open, the alarm will not sound, and the garden watering may begin too late for the permitted period.

As 6:31 am approaches, neighbourhood noise can change quickly: birds, passing utes, garage doors and sprinklers may mask a soft alert that seemed obvious a few minutes earlier. Place the phone somewhere dry but close to the route between the tap and garden beds, then listen for a moment at the expected noise level. That gives the chosen tone a fair chance of being heard without making the early alarm unnecessarily harsh for anyone nearby.

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.