Set the alarm clock for 11:59 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 11:59 am alarm

  • Asleep by 2:44 am — 6 full sleep cycles, about 9 hours
  • Asleep by 4:14 am — 5 full sleep cycles, about 7 hours
  • Asleep by 5:44 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.

11:59 am across the country

Sydney11:59 am
Brisbane11:59 am
Adelaide11:29 am
Perth9:59 am
Darwin11:29 am

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

Online alarm clock for 11:59 am

Waking at 11:59 am with the trip to the worksite still entirely ahead of you calls for one clear cue before the morning disappears. Set the alarm for the time you need to get moving, then use the arrival of 12:00 pm as a clean boundary between waking up and preparing to leave after the morning traffic has eased. That keeps the late start connected to the actual departure rather than turning into an open-ended lie-in.

Your worksite departure could slip if the alarm is quieter than the television, a fan or activity elsewhere in the house. Raise the volume to a level you can hear from where you are resting, and test the sound once before relying on it. Keep the browser running and the phone awake as well; otherwise the alarm can remain silent and leave the worksite run without its intended cue. A separate phone alarm is sensible when the departure cannot absorb a delay.

Heading outdoors close to noon can feel different from the earlier commute, even when the roads are clearer. Check the local humidity before dressing or loading the vehicle, since warm, heavy air may make outdoor preparation less comfortable. If conditions feel muggy, allow a few calm minutes for gathering keys, water and site notes indoors before stepping out into the late-morning air.

Common questions

Can I change the alarm sound?

Yes, there's a short list of tones to choose from before you press Start. Pick whichever one you're most likely to actually hear — softer sounds are easier to sleep through than a firm chime or bell.

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.