How to use the online alarm clock
Getting ready before the gas engineer arrives at 10:16 am leaves time to clear the meter cupboard, secure any pets and keep the front door key handy. Set the alarm while those preparations are still underway, rather than relying on noticing the clock later. If the appointment window continues towards 11:00 am, everything needed for the visit can remain together by the door.
The gas engineer may knock quietly, so check where the alarm sound will actually play before returning to another room. Wireless headphones can stay connected without making that obvious, sending the alert into a headset left on a desk instead of through the speakers. Disconnect them or run a brief sound check at the intended volume. If the browser page is closed or the computer goes to sleep, the alarm cannot alert you, and the engineer’s knock may be missed while you are occupied elsewhere.
Waiting for a morning appointment can make the house feel stuffy, particularly after cooking, showering or drying laundry indoors. Around 10:16 am, briefly opening a window can freshen the room, but damp British weather may bring humid air inside rather than improving it. Check the conditions outdoors first, then use a short, controlled airing period and close the window before listening for the engineer at the door.
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 10:16 am?
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.