How to use the online alarm clock
While you watch the clock for the moment the relief crew can go onto the railway tracks, an alarm set for 1:50 am keeps that precise handover point in view. The ten minutes before 2:00 am leave a useful margin for confirming that everyone is ready without releasing the crew earlier than planned.
Keep the alarm page open while you wait, with the computer or phone awake and its sound turned up enough to hear nearby. If you close the browser or let the device sleep, the alarm may not sound and the crew could miss its intended time for going onto the tracks. A separate backup on a work phone or site system is sensible where the timing affects railway access.
Anyone travelling to meet the relief crew should allow for the road journey before relying on a 1:50 am alert. British roads are often quiet at this hour, but overnight closures, diversions and reduced public transport can still lengthen the trip. Check the route beforehand, note the expected arrival time, and set an earlier travel reminder if the alarm marks the work event rather than the moment to leave.
Common questions
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 1:50 am?
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.
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.
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