How to use the online alarm clock
You are finishing up and heading out, so set the 8:23 pm alarm as the cue to close the curtains before darkness settles outside. It marks a clear stopping point without pulling you away from what you are wrapping up too early. Once the curtains are drawn, there is still time to check the room and collect your things before 9:00 pm.
As you move between rooms, the alarm page may slip behind another tab while you finish the last few jobs. It should continue running in the background, though returning to it briefly lets you confirm that the timer is still active and the sound level is suitable. If the browser page is closed or your phone or laptop goes to sleep, the alarm will not sound, and the curtains may remain open after you leave.
After the room is screened from the darkening evening, a small drink or light snack can fit naturally before departure. A cup of tea, water or a piece of fruit is less awkward to finish than a full supper when you are about to go. Anything hot that needs watching, or a larger meal that would delay you, can wait until you are settled back home.
Common questions
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.
What happens if my laptop goes to sleep before 8:23 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.