How to use the online alarm clock
Getting ready early for a West End matinee means setting the 1:06 pm alarm while there is still time to check tickets, choose the right Tube route and gather what you need. With 2:00 pm approaching, the alert can mark the point when preparation should turn into leaving, rather than interrupting a last-minute search for a booking reference or travel card.
Before relying on the alarm for your theatre plans, set a brief test alert and listen for the signal at the volume you expect to use. This confirms that the browser has permission to make a sound and that the selected tone is noticeable. Keep the alarm page active and your phone awake; otherwise the West End performance reminder may not sound when departure time arrives. After the test, return the alarm to 1:06 pm and leave the volume unchanged.
Heading into central London around midday often means moving from a relatively quiet room into busier streets, stations and theatre crowds. Choose a signal that remains distinct beside conversation and transport announcements without making it unnecessarily harsh. If you will be wearing headphones while preparing, remove them for the test so the alarm is checked under the same conditions in which you expect to hear it.
Common questions
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.
What happens if my laptop goes to sleep before 1:06 pm?
The tab sleeps along with it and the alarm will not sound on time, if at all. If you are relying on it, change the power settings so the machine stays awake, or keep a phone alarm running as well.
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