How to use the online alarm clock
Finish what you are doing and get ready to leave for the castle tour when the alarm sounds at 1:49 pm. The eleven minutes before 2:00 pm leave a useful margin for putting away your things, checking the meeting point and reaching the entrance without turning the departure into a rush.
Your castle tour may begin somewhere busy, so the alarm needs an audible signal rather than a screen-only cue. Check the volume beforehand, especially if the phone or laptop is in silent mode, and choose a sound you will notice above nearby conversation. Keep this page open and the device awake: otherwise the browser alarm may not sound, and the castle tour could leave while you are still finishing up.
Leaving for a castle in the middle of the day can mean moving between bright outdoor courtyards and much darker interiors. Before 1:49 pm, it helps to position the screen away from glare so the alarm controls remain easy to see, then lower excessive brightness if the device will be used inside. Sunglasses can be put away before entering, while a phone kept somewhere shaded is easier to check quickly at the alarm time.
Common questions
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 1:49 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.
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.
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