Online alarm clock for 8:51 pm
As you hand over the evening duties, set the alarm for 8:51 pm so the next person knows when to close the curtains before darkness settles in. It gives the changeover a clear marker without relying on someone noticing the fading light. With 9:00 pm approaching, there is also enough time to explain which rooms have already been done.
During the handover, the alarm page may sit behind another page while you check a message or finish a note. Keep the browser running, confirm that sound is allowed, and return briefly to check that the alarm remains set. Do not rely on it after putting the phone away for the night: the curtains reminder will not sound if the browser session has ended or the phone has gone to sleep.
Closing the curtains can be easy to overlook when the house still sounds busy at 8:51 pm. Voices, television and traffic may mask the alarm, even though the evening is becoming quieter outside. Set the volume above the surrounding noise and keep the phone near the person taking over, rather than leaving it in another room. As the background noise drops towards 9:00 pm, a moderate alert should be easier to hear without disturbing the rest of the household.
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.
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