How to use the online alarm clock
While getting ready to unlock the choir rehearsal hall, you can set the alarm for 7:43 pm before keys, music folders and travel arrangements demand your attention. That leaves a useful margin before 8:00 pm, so there is time to reach the entrance, check which key fits and have the room open before singers begin arriving.
Because this reminder is being prepared early, the main risk is leaving it on a phone or laptop that goes to sleep before 7:43 pm. The browser alarm may then remain silent, which could leave the choir waiting outside the hall. Keeping the browser active and the screen awake makes the alert more dependable; for a locked or sleeping phone, a separate system alarm provides sensible backup for the same time.
Once the hall is open on a British evening, allow part of the remaining time for the next commitment rather than letting the rehearsal setup absorb every spare minute. Note when you need to leave, pack any keys or papers together, and keep a short buffer for locking up or catching a bus. A clear finishing point helps 7:43 pm fit into the evening without making the following plan feel rushed.
Common questions
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.
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.
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