How to use the online alarm clock
Freshly awake at 3:13 pm, you are still under the duvet while the brass band rehearsal remains only a plan. Set the alarm for the moment you need to get up, dress and gather your instrument or music. The 47 minutes before 4:00 pm can cover that preparation without turning the afternoon into a frantic search for valve oil, reeds or the right black shoes.
With a mining-town band rehearsal ahead, check the sound setting before relying on the browser alarm. Silent mode may suppress what you expect to hear, so choose an audible volume and test it briefly while you are awake. Keep the browser active and the phone awake, because otherwise the alarm cannot sound and you could miss the rehearsal. Leave the phone somewhere audible rather than buried beneath bedding or inside an instrument case.
Stepping outdoors after a late-afternoon wake-up can feel quite different from the room you have just left, particularly on a damp British day. Check the humidity and air outside before choosing an extra layer for the walk to rehearsal. Moist air can also leave sheet music and instrument cases clammy, so keep papers in a folder and allow a few minutes for the instrument to adjust indoors before playing.
Common questions
What happens if my laptop goes to sleep before 3:13 pm?
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.