How to use the online alarm clock
Waking at 2:29 pm leaves little room to drift if you mean to join a lunchtime concert at the cathedral. The 31 minutes before 3:00 pm can cover getting dressed, collecting what you need and making your way out, provided the alarm ends the nap promptly rather than becoming another sound you miss.
Your cathedral concert depends on noticing the signal straight away, so the useful check happens before you settle back to sleep. Set the alarm briefly, listen for its tone and confirm that the volume is clear from where the phone will sit. A browser alarm cannot sound after its page is closed or the phone has gone to sleep, which could leave the concert starting while you are still at home. Keeping the page active and the phone connected to power removes two avoidable uncertainties.
Heading outdoors soon after waking at midday can feel different from the air inside, especially on a humid British afternoon. A light layer that is easy to carry suits shifting conditions better than dressing only for the indoor temperature. If the air feels close, allow an unhurried first few minutes on the walk to the cathedral, and take water for the journey rather than relying on a rushed stop near 3:00 pm.
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.