Set the alarm clock for 7:39 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 7:39 am alarm

  • Asleep by 10:24 pm — 6 full sleep cycles, about 9 hours
  • Asleep by 11:54 pm — 5 full sleep cycles, about 7 hours
  • Asleep by 1:24 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.

7:39 am across the country

London7:39 am
Birmingham7:39 am
Manchester7:39 am
Glasgow7:39 am
Belfast7:39 am

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

How to use the online alarm clock

As you hand the remaining terrace-house newspaper deliveries to the next person, set the alarm for 7:39 am so the changeover has a clear finish. That leaves enough early-morning time to explain which doors are still waiting, where the papers have been left and any awkward gates on the route before 8:00 am.

During the newspaper handover, the alarm page may be pushed into the background while you check a route message or map. It should continue counting there, so avoid refreshing it or opening a second alarm by mistake; returning to the page lets you confirm that 7:39 am is still set and the sound is enabled. For the newspaper round, the browser must remain open and the computer or phone awake, or the alert will not sound when the handover is due.

Once the terrace deliveries have changed hands, decide whether you are staying up or going back to bed before settling down. If more sleep is planned after 7:39 am, close the curtains first, keep outdoor clothes away from the bed and set a separate later alarm for the actual start of your day. That makes the remaining sleep a defined block rather than an uncertain doze interrupted by checking the time.

Common questions

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.

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.