How to use the online alarm clock
Waking at 12:40 pm means the West End matinee is no longer a distant plan: getting dressed, checking the route and leaving the house all begin now. An alarm for this time gives the afternoon a clear starting point, while 1:00 pm provides a useful checkpoint for being ready rather than still deciding what to wear.
With theatre preparations under way, the alarm page can remain open while another browser tab holds train times, a map or the booking details. A background tab may be slowed by the browser, so returning to the alarm page before relying on it helps confirm that it is still running. Keep the browser active and the phone awake; otherwise the alarm may remain silent and the matinee could be missed.
A midday alarm can affect anyone else enjoying a quiet lunch, working from home or resting after a morning shift. For a 12:40 pm wake-up, a moderate volume and a nearby phone should be enough without carrying through the whole house. If someone else is likely to hear it, adding vibration and choosing a brief tone keeps the alert noticeable at close range while limiting the interruption.
Common questions
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.
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.
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