How to use the online alarm clock
Hand over the remaining work now so you can leave in time for the last suburban train. An alarm set for 10:06 pm gives the next person a clear moment to take over while you gather your coat, check the platform and head out. With 11:00 pm approaching, that reminder can separate a calm changeover from a hurried dash through the station.
Your train reminder needs to be audible even if the rest of the phone is quiet. Check the alarm volume before depending on it, as silent mode or muted browser audio may suppress the sound; a quick test alert can confirm what you will actually hear. Keep the page running and the system awake until 10:06 pm, because the alarm cannot warn you about the last suburban train after the page is closed or the system is put to sleep.
Leaving an air-conditioned workplace late in the evening can make the outdoor air feel unexpectedly warm, even in Britain after a hot summer day. Keep a light layer within reach for a cool carriage, but avoid putting it at the bottom of your bag during the handover. A small bottle of water beside your keys also saves you from searching for one while the departure board is already counting down.
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 10:06 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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