Set the alarm clock for 10:02 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 10:02 am alarm

  • Asleep by 12:47 am — 6 full sleep cycles, about 9 hours
  • Asleep by 2:17 am — 5 full sleep cycles, about 7 hours
  • Asleep by 3:47 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.

10:02 am across the country

Sydney10:02 am
Brisbane10:02 am
Adelaide9:32 am
Perth8:02 am
Darwin9:32 am

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

How to use the online alarm clock

Uni lectures, gym sessions before work, or just a second alarm because the first one never works: 10:02 am is a popular time to want a backup. This rings from your browser at 10:02 am. No app store, no sign-up, just a tab that needs to stay open until it fires.

Set your preferred sound, press Start, then leave the tab where it is. Everything happens inside the browser — no background app, no notification pushed from a server — so an open tab is what actually makes the alarm ring at the right time.

This works well as a second alarm, one that isn't tangled up with phone notifications, do-not-disturb settings, or low battery. It genuinely won't ring if the tab gets closed or the device goes to sleep, so treat it as a backup or a work-desk tool rather than the only alarm for something important. On a 24-hour clock 10:02 am is written 10:02, and spoken aloud it's two minutes past ten in the morning. Written the Australian way that's 10.02 am, and typed in a hurry it's often 10:02am. Setting the alarm to 10:02 am tomorrow morning works the same way: if the time has gone for today, the count runs through to it.

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.