How to use the online alarm clock
As you hand the evening shift to someone else, set the 9:28 pm alarm so you can leave for the performance at your local theatre without carrying work in your head. It gives you a clear moment to finish the handover, collect your coat and check the route. With 10:00 pm approaching, that cue can keep the changeover brief while still leaving room for a calm departure.
Your theatre plans depend on hearing the signal, so test its sound now rather than discovering a problem when you mean to leave. Set a near-term trial alarm, raise the volume to a level you can recognise and check that the browser has permission to play audio. Then return to 9:28 pm once the test has worked. If you close this page or allow your phone or computer to sleep, the theatre reminder may stay silent, so use a separate alarm when you cannot keep it active.
Leaving for an evening performance can disturb people who are settling down at home. Put keys, shoes and anything needed for the theatre near the door earlier, then use the 9:28 pm signal as the cue to leave quietly rather than begin searching. A moderate alarm volume should remain noticeable without carrying through every room, especially as the household moves towards 10:00 pm.
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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