How to use the online alarm clock
Hand your current job over to someone else before leaving to join the volunteer beach clean-up, and set the alarm for 11:34 am so the changeover does not drift. That gives you a clear point to stop explaining what remains, collect your outdoor things and head off before 12:00 pm.
Because the alarm is meant to release you from one responsibility and send you to the beach, check the sound setting after setting the time. Silent mode may suppress what you expect to hear, so raise the volume and make a quick test if there is any doubt. Keep the browser alarm active and the phone awake: otherwise the beach clean-up reminder may not sound, leaving your replacement waiting while you miss the agreed departure.
Leaving for a late-morning volunteer session can disturb other people in the house if an alarm rings repeatedly while coats, keys and bags are being gathered. At 11:34 am, use a tone loud enough for you but not one that carries through every room, then place the phone close by. Prepare gloves, a water bottle and suitable footwear beforehand, so silencing the alert leads straight to a quiet exit rather than a hurried search around the house.
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 11:34 am?
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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