Set the alarm clock for 11:15 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 11:15 am alarm

  • Asleep by 2:00 am — 6 full sleep cycles, about 9 hours
  • Asleep by 3:30 am — 5 full sleep cycles, about 7 hours
  • Asleep by 5:00 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.

11:15 am across the country

London11:15 am
Birmingham11:15 am
Manchester11:15 am
Glasgow11:15 am
Belfast11:15 am

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

How to use the online alarm clock

While you wait to leave for the school governors’ meeting, an alarm at 11:15 am lets you watch the time without repeatedly checking the clock. It gives you a clear point to finish what you are doing, gather any papers and allow for the journey. With 12:00 pm approaching afterwards, the reminder also leaves some useful morning time if the meeting starts nearby.

Your school governors’ meeting may take place in a busy office, café or shared room, where conversation and other background noise can cover a quiet signal. Set the alarm volume high enough to stand out, then play a brief test while the surrounding sounds are still present. Check whether audio is being sent to headphones or another connected speaker. If you close this page or let your device sleep, no alarm will sound, so the school governors’ meeting may begin without you.

Waiting for an 11:15 am appointment can turn into several minutes of staring at the screen as the morning light changes. Once the alarm is set, the phone can rest slightly out of direct glare with the display dimmed to a comfortable level. A paper agenda or printed notes provide something useful to review without keeping your eyes fixed on the countdown.

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 11:15 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.