How to use the online alarm clock
Finishing up and heading out at 8:29 pm leaves enough time to reach Euston and meet the Caledonian Sleeper without letting the evening drift away. An alarm keeps that departure point distinct from the other small jobs that tend to appear before leaving. With 9:00 pm approaching, the alert can mark the moment to collect your things, check the route and start towards the station.
For a train meeting that depends on leaving promptly, the alarm sound is worth testing while there is still time to change the volume. Set a near-term trial alert, listen for it from wherever the phone or computer will sit, then use 8:29 pm once the signal is clearly audible. The alarm cannot protect the Caledonian Sleeper plan if the browser has been closed or the computer has gone to sleep, so a separate phone alarm is sensible when the departure must not be missed.
Leaving for Euston in the evening can mean moving from a bright room into dim streets or station approaches. Before 8:29 pm, keep a hallway light on, place keys where they are visible, and allow your eyes a moment to adjust before stepping outside. A charged phone with its brightness reduced enough for comfortable route-checking also avoids glare while walking towards the station.
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 8:29 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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