How to use the online alarm clock
Halfway through warming the changing room for the school match, you need a clear signal that pulls you away from the job at 6:47 am. The alarm marks the moment to stop checking radiators, gather anything left by the door and move on to the next match-day task. That still leaves a useful stretch before 7:00 am without relying on repeated glances at the clock.
Because the heating job may take you away from your phone, the alarm should remain open and audible while you work. Once 6:47 am is selected, the page can stay where it is with the volume high enough to carry across the room. If the browser is closed or the phone goes to sleep, the changing-room alarm may never sound, leaving the heating running longer than planned. A separate phone alarm is a sensible backup if you cannot keep this page active.
An empty school changing room can be quiet at first, but footsteps, doors and early arrivals often raise the noise level as 7:00 am approaches. Keep the phone away from benches where bags or coats could cover its speaker, and choose a spot near your working area rather than across the room. At this early hour, a distinct alarm tone is easier to notice than one resembling ordinary message alerts.
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 6:47 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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