How to use the online alarm clock
Halfway through sorting bottles and jars, you need a firm interruption at 2:54 pm so the glass actually reaches the council recycling centre. The alarm marks the moment to stop what you are doing, gather the container and leave, rather than drifting past 3:00 pm while finishing one more small job.
With a box of glass waiting by the door, the alarm sound needs to come from somewhere you will notice. Connected headphones can quietly take over the audio even when they are lying on a desk or tucked in a bag, so checking the selected sound output beforehand avoids a silent surprise. The browser must remain running and the phone or computer awake; otherwise the glass trip may receive no audible reminder.
Because this falls in the middle of the afternoon, the recycling-centre run may sit between lunch and another commitment later that day. A small buffer after 2:54 pm allows for shoes, keys, traffic and unloading without swallowing the time reserved for what follows. Setting aside that margin also makes 3:00 pm a useful departure checkpoint if the alarm catches you before everything is ready.
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.