How to use the online alarm clock
Wrap up what you are doing and leave for the pub, where your colleagues are meeting for a Sunday roast. An alarm set for 12:35 pm gives the departure a firm edge, so a last small task does not quietly turn into another half-hour. With 1:00 pm approaching, there is still time for the journey and a settled arrival rather than walking in while everyone else is choosing lunch.
Your Sunday roast depends on hearing the signal, so check where the audio will play after setting the alarm. A phone or laptop may still be connected to headphones tucked in a bag, and the sound can go there without any obvious sign on the screen. Disconnect them or keep them within earshot, then confirm that the volume is audible. This alarm cannot sound once its browser session has ended, so your colleagues could be left waiting at the pub; keeping the session active until 12:35 pm avoids relying on a silent reminder.
Leaving around midday can mean moving between a bright street and a much dimmer hallway or pub entrance. Before finishing up, place keys, coat and travel card somewhere clearly lit instead of searching for them in the shadows at 12:35 pm. If the room is gloomy, switching on a nearby lamp a few minutes earlier makes the final glance for belongings quicker and helps keep the departure on time.
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.