How to use the online alarm clock
Waking at 9:05 pm gives you a quiet moment to get your bearings before checking the river level after the evening downpour. The alarm marks the point to look outside, gather a torch and waterproofs, and decide whether the path or nearby bank can be approached safely. There is no need to wait until 10:00 pm if conditions already seem unsettled.
Your river check needs a signal that can be heard above rain against the windows, a television, an extractor fan or conversation elsewhere in the house. Set the browser alarm volume clearly above that background noise, then test it while the room sounds as it normally will. Keep the computer awake with the browser running: otherwise the river inspection may receive no audible reminder, leaving you to notice the time yourself.
After the river level has been checked, the rest of the evening can still be kept suitable for returning to sleep. At 9:05 pm, bright room lighting and a long spell reading updates may turn a brief task into a fully wakeful hour. A prepared coat, torch and simple note of what to observe can make the outing shorter, while a second alarm can mark when to stop monitoring and settle down again.
Common questions
What happens if my laptop goes to sleep before 9:05 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.