How to use the online alarm clock
While another job still has your attention, a 7:24 pm alarm provides a clear break for checking the timetable for overnight Tube engineering works. It leaves enough evening to confirm planned closures, replacement buses or a different route before 8:00 pm, without relying on memory once the current task takes over again.
Because that engineering timetable needs checking at a particular moment, the browser must remain open and the phone or computer must stay awake until the alarm sounds. Closing the browser, or allowing the equipment to sleep, means the alert cannot interrupt the work in progress and the timetable may remain unchecked. Keeping the alarm page visible also makes its status easy to confirm while attention returns to the task already under way.
Once the evening commute has thinned out, the room or street may become quieter, but televisions, conversations and passing traffic can still mask a brief alert. For this 7:24 pm reminder, a clearly audible volume and a position away from soft furnishings help the sound carry. If the surroundings are likely to grow louder near 8:00 pm, placing the phone or computer within sight adds a visual cue when it is time to look at the Tube plans.
Common questions
What happens if my laptop goes to sleep before 7:24 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.
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.
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