How to use the online alarm clock
Break away from the job you are doing at 10:43 am so you are ready to meet the gas engineer rather than rushing to the front door at the last moment. The alarm gives you a clear point to stop, put tools or paperwork aside, and check the entrance before 11:00 am, when the engineer may be due.
For this appointment, the signal needs to be audible above whatever is already happening in the house. Set the volume with the radio, washing machine or conversation still running, since a quiet test in an empty room can be misleading. Keep the browser alarm active until it rings; if it is no longer running, it cannot alert you, and the gas engineer could be left waiting outside. Staying within hearing distance also matters if the sound comes from another room.
As late morning gets busier, ordinary household noise can build quickly: a kettle boils, deliveries arrive and traffic becomes more noticeable through an open window. Before returning to your task, reduce one avoidable source of noise and place the alarm nearby. At 10:43 am, that small adjustment leaves enough attention for the engineer’s knock or doorbell as well as the alarm.
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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