How to use the online alarm clock
You are halfway through what you are doing, but catching the last boat from the Isle of Skye means breaking away at 10:13 pm rather than finishing the job first. Set the alarm for that exact time and treat it as the point to stop, gather your things and leave. Waiting until 11:00 pm would turn a useful reminder into a missed connection.
With the last boat depending on an audible alert, check where your browser is sending sound before settling back into the task. Headphones may remain connected in a pocket or another room without making their status obvious, leaving the alarm inaudible where you are. Play a brief test through the same browser and confirm the sound comes from the intended speaker. This browser alarm cannot alert you after its session stops running, so the boat plan also needs the page kept active and the computer awake until 10:13 pm.
Breaking off for the Skye departure late in the evening is easier when the display does not dominate the dim room. Reduce screen brightness to match the surrounding light, enlarge anything you still need to read, and avoid staring at the countdown continuously. Once the alarm is set, placing the screen slightly farther away lets the alert do its job while your eyes get a break before the journey.
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 10:13 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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