How to use the online alarm clock
Pause what you are doing at 8:28 pm and use the alarm as your cue to close the henhouse before urban foxes begin prowling nearby. You can finish the immediate bit of your current job, then step away without repeatedly checking the clock. Setting the reminder now also leaves the rest of the evening clear before 9:00 pm.
Keep this alarm page in the foreground while you carry on, as browsers may restrict activity when a page sits behind other tabs for a while. Check that your sound is audible and leave the browser available until 8:28 pm. If the page is closed, or the phone or computer settles into sleep, the henhouse reminder may make no sound, so use a separate alarm when missing it would leave the birds exposed.
Moving from a brightly lit screen into a dim garden can make the route to the henhouse harder to pick out straight away. A few minutes beforehand, lower the screen brightness, switch on an outside light, and put a torch beside the door. In the evening gloom, that small preparation helps you see the latch, count the birds and check the enclosure without staring at your phone on the way.
Common questions
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.
Can I use this on a phone?
It works in a mobile browser, but phones lock the screen and suspend background tabs far more readily than a laptop does, which can stop the alarm sounding. For anything important, a desktop or a plugged-in laptop is the steadier option.
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.