How to use the online alarm clock
Pause what you are doing at 12:39 am and set an alarm so you can break away in time to meet the Belfast ferry in Liverpool. A reminder now leaves 21 minutes before 1:00 am, giving you a clear point to finish the task in hand, gather what you need and shift your attention towards the arrival.
Because the ferry may arrive in a quiet terminal, choose an alarm tone that suits the setting as well as your tendency to miss alerts. A softer sound can be enough when the phone is beside you; a more persistent tone makes sense if you are absorbed in work or moving between rooms. Check the volume after setting 12:39 am. This browser alarm will not warn you about the ferry if you close the page or let the phone or computer sleep, so keep the alarm running and the screen awake until it sounds.
Before leaving for a night-time ferry arrival, adjust the light around you rather than relying on a bright screen at the last moment. Keep a small lamp on while you finish your current job, and place keys or travel details where that light reaches them. If you will step outside soon after 1:00 am, having a torch ready can make the move from indoors to a dark pavement or car park less abrupt.
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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