How to use the online alarm clock
Preparing to watch a meteor shower above a heather-covered moor means arranging the wake-up before you turn in. An alarm for 2:43 am gives you time to dress, collect a torch and reach your viewing spot before 3:00 am, without making the round hour itself your starting signal. Check the cloud cover beforehand and leave outdoor layers where sleepy hands can find them.
A quiet setting suits a shared room, but a gentle tone may blend into the night and fail to pull you from deep sleep. A more insistent sound is useful when missing the first alert would shorten the meteor viewing, though it need not wake everyone nearby if the volume is tested at arm’s length. If this browser page is closed or your phone goes to sleep, the alarm cannot sound, which could leave the meteor shower unwatched; keep the page active and the phone awake until 2:43 am.
Crossing open moorland at this hour can feel damper than the forecast suggests, especially when mist settles over the heather and moving air cools wet fabric. Pack a dry cloth for binoculars or glasses, and keep a light waterproof layer beside your boots. Let your eyes adjust after switching off the torch, but retain a dim light for uneven ground, gates and the walk back.
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 2:43 am?
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.