Set the alarm clock for 9:00 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 9:01 am Alarm clock for 9:02 am

Going to bed for a 9:00 am alarm

Asleep by 11:45 pm — 6 full sleep cycles, about 9 hours
Asleep by 1:15 am — 5 full sleep cycles, about 7 hours
Asleep by 2:45 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.

9:00 am across the country

London	9:00 am
Birmingham	9:00 am
Manchester	9:00 am
Glasgow	9:00 am
Belfast	9:00 am

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

How to use the online alarm clock

You are halfway through another job when you need to break off and show the water company representative the meter reading. Set the alarm for 9:00 am so the appointment does not slip your mind while your hands and attention are elsewhere. The round hour also gives you a clear point for pausing, finding the meter cupboard and having the reading ready.

Because your phone may be on silent while you work, check the sound setting and alarm volume before relying on the alert. A quick test can confirm whether your browser is allowed to make a noise in silent mode. Keep the browser session active and the phone awake: otherwise the alarm will not sound, and the representative could arrive while you are still occupied.

Before returning to your current task, clear a comfortable route to the meter and leave any required key nearby. A warm 9:00 am morning can make a closed cupboard or utility area stuffy, while strong air conditioning elsewhere may mask a quiet alert. Set a noticeable volume, keep the phone close, and allow a moment to move between the cooler room and the meter without rushing.

Common questions

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 9:00 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.