Set the alarm clock for 11:38 am

 

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

The alarm goes off in: ::
 
 

Going to bed for a 11:38 am alarm

  • Asleep by 2:23 am — 6 full sleep cycles, about 9 hours
  • Asleep by 3:53 am — 5 full sleep cycles, about 7 hours
  • Asleep by 5:23 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.

11:38 am across the country

London11:38 am
Birmingham11:38 am
Manchester11:38 am
Glasgow11:38 am
Belfast11:38 am

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

Online alarm clock for 11:38 am

While preparing early for the school governors’ meeting, you can set an alarm for 11:38 am and leave enough time to gather your papers, check the agenda and plan the journey. The alert falls shortly before 12:00 pm, so it can mark the point when preparation needs to become departure rather than another small task at home or work.

For this governors’ meeting, the useful check is whether your phone will actually make a sound at the chosen moment. Silent mode, low alert volume or connected earphones may make the alarm easy to miss, so test the sound beforehand and keep the volume at a level you will notice. Because the alarm relies on an active browser session, it cannot alert you if that session ends or the phone goes to sleep; relying on it alone could leave you late for the meeting.

Your surroundings may become busier as the morning approaches lunchtime, with conversations, traffic and school activity making a quiet alert less noticeable. At 11:38 am, keep the phone close rather than inside a bag, and choose a place where its sound will not be masked. If you are reviewing meeting notes in a shared room, a short vibration alongside the audible alert gives you another clear cue without disturbing everyone nearby.

Common questions

What happens if my laptop goes to sleep before 11:38 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.

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.