How to use the online alarm clock
As you hand the museum cloakroom over to the next attendant, set the alarm for 1:37 pm so leaving does not get lost among final tickets, keys and unclaimed coats. It gives you a clear point to finish the handover, collect your things and head out before 2:00 pm, rather than lingering because one last detail keeps appearing.
A cloakroom can stay noisy even between busy periods, with conversations, hangers, radios and visitors masking a quiet alert. Set the volume high enough to stand out, then play a brief test from where you will actually leave the phone; a coat pocket or staff cupboard may muffle it. This alarm works only while the browser remains able to run it, so it cannot safeguard your museum cloakroom handover after that connection has been stopped. Use a separate alarm as backup if missing the changeover would leave your colleague waiting.
Finishing a midday cloakroom shift may leave enough afternoon for a proper sleep, but drifting off without a boundary can take more of it than intended. If you plan to rest after 1:37 pm, decide the waking time before you lie down and set that second alarm separately. Leave enough time afterwards to wake fully, have some water and check your evening plans without rushing straight into them.
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 1:37 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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