How to use the online alarm clock
Waking now gives you a quiet moment to get your bearings before you need to unlock the hall for choir rehearsal. Set the alarm for 7:18 pm, then gather the keys and anything else you must take. With 42 minutes until 8:00 pm, there is enough room to arrive, switch on the lights and make sure the entrance is ready before the singers appear.
A locked rehearsal hall is an awkward place to discover that a reminder is too quiet, so check the signal while you are still at home. Set a near-term test alarm, turn the volume to a level you can hear and confirm that the sound plays. This browser alarm will not alert you after its session has been closed or while the handset is asleep, which could leave the choir rehearsal waiting outside; keep the page active and use a separate backup if missing 7:18 pm would cause trouble.
Heading out for the hall in a British evening can feel quite different from the afternoon, particularly when damp air settles after sunset. Check the local humidity and temperature before leaving, and take a light outer layer if the air feels clammy. If the rehearsal room has been shut all day, arriving a little early also leaves time to air it before everyone comes in.
Common questions
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.
What happens if my laptop goes to sleep before 7:18 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.
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