How to use the online alarm clock
You’ve just woken at 7:28 pm, and the river level after the evening downpour is still waiting to be checked. An alarm at this time gives you a clear moment to get up, find suitable clothes and gather what you need before heading outside. You can be ready well before 8:00 pm without turning the evening into a rush.
For a river-level check, the alarm sound should match how easily you might drift off again. A softer tone suits a quiet room when the phone is close by, while a more persistent sound may be sensible if rain or household noise could mask it. Keep the browser active and the phone awake, as otherwise no sound will wake you for the river check.
Reaching the river may take longer this evening if the downpour has slowed traffic or affected local roads. Allow time for the whole journey rather than using the usual driving estimate, and check the intended route before leaving. If part of the way is on foot, include those extra minutes and take a torch or reflective layer for darker stretches.
Common questions
What happens if my laptop goes to sleep before 7:28 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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