How to use the online alarm clock
Finish checking the tide time for the Cornish cove, note what you need, and leave at 1:30 pm without letting one last lookup delay you. The alarm marks a clear stopping point, with another half-hour before 2:00 pm if you need to travel, change footwear, or put away anything used for planning.
Your tide check is only useful if the reminder can actually be heard when it matters, so test the alarm sound now and confirm that the volume is noticeable. Keep the browser active and prevent the phone or computer from sleeping while you rely on it: once either is no longer running the page, the alarm may stay silent and the cove plan could slip past its intended time. A brief trial before leaving also reveals whether headphones, muted audio, or a quiet speaker will make the signal easy to miss.
Leaving for the Cornish coast around midday can mean moving between a busy café, traffic, gulls, wind and a much quieter path towards the water. At 1:30 pm, choose a signal that stands apart from the noise where you expect to be, rather than one that merely sounds clear indoors. If the surroundings are likely to grow louder, keeping the phone close and adding vibration gives the reminder a better chance of registering.
Common questions
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.
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.
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