How to use the online alarm clock
Finish the last stretch across the heath and turn for home before the fog settles over the path. An alarm for 7:04 pm gives the walk a definite stopping point, leaving enough evening to get back, remove muddy boots and settle indoors before 8:00 pm. It is especially useful when fading light makes an extra loop seem shorter than it really is.
On a breezy heath, the signal may have to compete with conversation, traffic near the road or audio playing through headphones. The selected volume should be clearly audible without being startling, and a quick sound check before setting off can reveal whether background noise masks it. This alarm can only end the heath walk while the browser remains active and the phone stays awake; if either stops, there may be no sound to prompt the return.
Coming home at 7:04 pm can affect people already relaxing, working or putting children to bed. Keeping the phone close means the alarm does not need to sound across the whole house, while silencing it promptly avoids a repeated evening disturbance. Leaving outdoor gear near the entrance also keeps wet coats and boots out of shared rooms when visibility worsens and the walk ends in damp weather.
Common questions
What happens if my laptop goes to sleep before 7:04 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.