Set the alarm clock for 3:08 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 3:08 am alarm

  • Asleep by 5:53 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 7:23 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 8:53 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.

3:08 am across the country

Sydney3:08 am
Brisbane3:08 am
Adelaide2:38 am
Perth1:08 am
Darwin2:38 am

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

Online alarm clock for 3:08 am

While you are getting ready for a 3:08 am platypus watch beside the creek, set the alarm before packing your torch, warm layer and quiet spot to sit. That leaves your attention free for the small preparations that matter in the dark. If you plan to stay until 4:00 am, you can also use that round hour as a separate reminder to reassess your position.

A creekside platypus observation can include running water, insects, frogs and rustling vegetation, so choose a signal you can hear over that background noise. Set the volume while those sounds are present, then make a brief test rather than relying on a level chosen in a quiet room. Keep the browser running and your screen awake: if either stops, the alarm may not sound and your platypus observation could begin later than planned.

As you settle near the creek before dawn, pause and listen to how the surroundings change around 3:08 am. Water noise may stay steady while wildlife calls rise or fade, which can alter how clearly the alarm carries. Place your phone close enough to hear at a moderate volume, but keep it secured from damp ground and away from the water’s edge. A vibration setting can provide another noticeable cue without making the signal unnecessarily loud in the night.

Common questions

Does the alarm work if my laptop goes to sleep?

Not reliably. If the device sleeps or the screen locks, the browser tab pauses along with it, so the alarm may not fire on time or at all. Adjust your power settings if you're relying on this over a longer stretch.

Do I need to create an account or download anything?

No, there's nothing to sign up for and nothing to install. Pick a time and a sound, press Start, and it runs entirely in this browser tab.

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.