How to use the online alarm clock
Getting ready early to meet the Caledonian Sleeper at Euston means using 8:42 pm as a firm cue, before departure boards and platform announcements demand your attention. An alarm at this time leaves 18 minutes before 9:00 pm, enough to check the train’s expected platform, confirm where you will wait and put your ticket somewhere accessible.
While preparing for the train, sound may have been routed to headphones without you noticing, especially if they connected automatically earlier. The alarm can appear on screen yet be much quieter than expected, so the selected audio output and volume need checking while there is still time to correct them. Because this alarm relies on an active browser session, it cannot help with the train once that session has ended or the phone has suspended it; a separate phone alarm provides sensible backup.
Waiting around Euston in the evening can feel warm after walking with luggage, while the station or train air conditioning may feel sharply cooler once you stop moving. Keeping a light layer within reach, rather than buried in a case, makes that change easier to manage. At 8:42 pm, it also avoids having to unpack near the platform just as attention shifts to the sleeper’s arrival.
Common questions
Do I need an account or an app?
Neither. Choose a time and a sound, press Start, and it runs in this browser tab. Nothing is downloaded, nothing is registered, and closing the page leaves nothing behind on the device.
Can I change the sound?
Yes, there is a short list of tones to pick from before you press Start. Softer sounds are easy to sleep through, so a firmer bell tends to be the safer choice for anything early in the morning.
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.
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