How to use the online alarm clock
As you hand the last desk or study area over to whoever is taking your place, a 12:50 am alarm marks the moment to leave the university library. It gives you ten minutes to finish the handover, collect your belongings and be outside before 1:00 am, without letting one final task turn into another half-hour.
Your library departure depends on the alert actually sounding, so the browser needs to remain available after the alarm is set. If its tab or window is closed, or the laptop is allowed to sleep, there will be no sound and the library handover may run late. A quick test at a low volume can confirm that the chosen tone is audible without disturbing other people who are still studying.
Once the library is behind you, those ten minutes work well as a buffer rather than spare study time. Keeping them clear leaves room to return a book, find your coat and reach a staffed exit without rushing. It also protects the gap before your next commitment later that same day, whether that means checking the night-bus route or preparing what you will need after sunrise.
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.
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