Set the alarm clock for 6:35 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 6:35 am alarm

  • Asleep by 9:20 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 10:50 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 12:20 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.

6:35 am across the country

London6:35 am
Birmingham6:35 am
Manchester6:35 am
Glasgow6:35 am
Belfast6:35 am

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

How to use the online alarm clock

Pull yourself away from warming the changing room when the 6:35 am alarm sounds, rather than letting preparations for the school match absorb all your attention. It marks the moment to check the temperature, gather any remaining kit and move on to the next job before 7:00 am, while the building is still quiet.

A heater, extractor fan or voices in the corridor can easily drown out a modest signal, so choose a clearly audible volume and leave the phone nearby instead of inside a coat or kit bag. Test the sound against the actual background noise before continuing the warm-up. The alarm cannot interrupt the changing-room preparations if the browser is no longer actively running it, so keep it running and prevent the phone from sleeping until 6:35 am.

Moving around the house this early can wake people who have no reason to be up for the match. Keep doors from banging, prepare keys and outdoor shoes beforehand, and use a quieter signal paired with vibration if the phone will remain close enough to notice. Once the alarm has done its job, silence it promptly before leaving for school.

Common questions

Will it still be right when the clocks change?

Yes. It reads your device's local clock, so the move between GMT and BST at the end of March and October is picked up automatically, as long as the computer's date, time and time zone are set correctly.

Can I use this on a phone?

It works in a mobile browser, but phones lock the screen and suspend background tabs far more readily than a laptop does, which can stop the alarm sounding. For anything important, a desktop or a plugged-in laptop is the steadier option.

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 6:35 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.