How to use the online alarm clock
Waking at 9:43 pm leaves no room for a slow start if you mean to catch the beginning of the Proms at the Royal Albert Hall. Get upright, check what you need, and use the 17 minutes before 10:00 pm for the essentials of leaving rather than starting another task. Your alarm marks the moment to move.
A Proms reminder can seem to have failed when its sound has quietly been routed to headphones lying across the room. Before relying on this alarm, check the audio destination and set a volume you can hear from where you are resting. If the browser session ends or the phone falls asleep, the Proms alarm will not sound, so use the handset’s built-in alarm as backup when missing the opening matters.
With an evening departure for the Albert Hall close at hand, keep food simple enough that it does not delay shoes, coat and tickets. A small snack and some water may fit into the remaining preparation, while a full meal is more sensibly left until later. Avoid taking an open drink into the last-minute rush; packing a closed bottle keeps your hands free as you head out.
Common questions
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.
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.