Set the alarm clock for 10:17 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 10:15 am Alarm clock for 10:16 am Alarm clock for 10:18 am Alarm clock for 10:19 am

Going to bed for a 10:17 am alarm

Asleep by 1:02 am — 6 full sleep cycles, about 9 hours
Asleep by 2:32 am — 5 full sleep cycles, about 7 hours
Asleep by 4:02 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.

10:17 am across the country

London	10:17 am
Birmingham	10:17 am
Manchester	10:17 am
Glasgow	10:17 am
Belfast	10:17 am

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

How to use the online alarm clock

Waking at 10:17 am gives you time to shake off sleep before accepting the milk delivery at the door. Set the alarm for the moment you need to get up, then leave a dressing gown and your keys within easy reach. You will have a useful stretch of the morning before 11:00 am, without having to keep checking the clock.

A milk delivery needs a tone that suits both your sleepy start and the people nearby. Choose a gentle sound if the alarm is close to your pillow and you tend to wake promptly; use a more persistent tone if you might silence the first alert without fully noticing it. Set the volume now and test it once, so there is no surprise later. Keep the alarm page open and your phone awake, as the milk delivery reminder may otherwise remain silent when you need it.

Before settling back down, consider how bright the hallway and doorstep will be later in the morning. Part the curtains slightly or leave a low lamp ready, giving your eyes a softer transition when the 10:17 am alarm sounds. Place slippers along the clear route to the door as well, so you are not searching through a dim room while the milk is waiting outside.

Common questions

Does the alarm still work if I close the tab?

No. Everything runs inside this page, so closing the tab — or quitting the browser altogether — ends the countdown there and then. Leaving it open in the background is all it asks, and switching to another tab makes no difference.

What happens if my laptop goes to sleep before 10:17 am?

The tab sleeps along with it and the alarm will not sound on time, if at all. If you are relying on it, change the power settings so the machine stays awake, or keep a phone alarm running as well.

Do I need an account or an app?

Neither. Choose a time and a sound, press Start, and it runs in this browser tab. Nothing is downloaded, nothing is registered, and closing the page leaves nothing behind on the device.

Can I change the sound?

Yes, there is a short list of tones to pick from before you press Start. Softer sounds are easy to sleep through, so a firmer bell tends to be the safer choice for anything early in the morning.