How to use the online alarm clock
As you hand the shift to a colleague, an alarm for 11:14 pm can mark the final check of the timetable for tonight’s engineering works on the Underground. It gives both of you a clear handover point before responsibilities change and leaves 46 minutes until 12:00 am for confirming affected lines, access times and any late amendments.
A noisy control room, depot or journey home can make an ordinary alert difficult to hear, so the selected volume needs to suit the surroundings at 11:14 pm. A brief test beforehand can reveal whether conversation, ventilation or machinery masks the sound; keeping the alarm nearby may also make the alert more noticeable. The alarm only sounds while its browser page remains open and the computer or phone stays awake, so the engineering schedule could miss its check if either condition changes. A separate workplace reminder is sensible when the handover depends on that prompt.
Because this check falls late in the evening, a light snack and a drink prepared before the shift change can avoid interrupting the timetable review. Water or a familiar non-caffeinated drink may fit the remaining work better than a large meal at 11:14 pm. Anything requiring preparation can wait until the engineering details have been transferred and the colleague taking over has acknowledged 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 11:14 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.
Cookie policy