How to use the online alarm clock
You’re handing the after-school club collection to someone else, so a 4:02 pm alarm can mark the moment they need to take over. Share the schoolchild’s collection details now, including the entrance, expected finish and who staff should expect. That leaves enough room before 5:00 pm for them to check the route and handle any change without relying on a hurried message.
Because this alarm runs in the browser, its page needs to remain active while you wait. Closing the browser, or letting the phone or laptop sleep, prevents the alarm sounding and could leave the schoolchild waiting at the after-school club. Keep the alarm visible, leave the sound on and check the volume before passing responsibility across. A separate message to the person collecting provides a useful record of the arrangement.
Collection handovers at 4:02 pm often happen while afternoon light is changing and screens begin to look unusually bright. Reduce glare by moving away from a window reflection or turning the display brightness down to match the room. Once the collection information has been read, put the screen aside instead of repeatedly checking it; the alarm can remain open with the display at a comfortable level.
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 4:02 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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