Set the alarm clock for 8:55 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 8:53 am Alarm clock for 8:54 am Alarm clock for 8:56 am Alarm clock for 8:57 am

Going to bed for a 8:55 am alarm

Asleep by 11:40 pm — 6 full sleep cycles, about 9 hours
Asleep by 1:10 am — 5 full sleep cycles, about 7 hours
Asleep by 2:40 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.

8:55 am across the country

London	8:55 am
Birmingham	8:55 am
Manchester	8:55 am
Glasgow	8:55 am
Belfast	8:55 am

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

How to use the online alarm clock

Break away from what you are doing when the 8:55 am alarm sounds, so you can set off and reach the construction site before rush-hour traffic thickens. That leaves a short, deliberate handover between the task in front of you and getting on the road. With 9:00 am approaching, use the signal as the point when preparations end: gather your keys, check the site address and leave without squeezing in another job.

Your surroundings should determine how the alarm gets your attention. A softer tone may be enough in a quiet kitchen or home office, while a more insistent sound suits a noisy room, a running radio or last-minute loading near the door. Set the volume high enough to interrupt the work you are absorbed in, then keep the alarm within hearing range. Do not rely on it as the only cue for reaching the construction site: it cannot sound once the browser is closed or the phone or laptop has gone to sleep.

Heading out at this point in the morning can mean stepping from air conditioning into unexpectedly warm sunshine, especially during a summer spell. Keep a light layer easy to remove rather than wearing it throughout the journey, and allow the car ventilation a moment to clear warm, stuffy air. A bottle of water placed with your keys also avoids an extra stop while the roads are beginning to fill.

Common questions

What happens if my laptop goes to sleep before 8:55 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.