How to use the online alarm clock
You are only just waking at 1:44 am, with the solstice sunrise at Stonehenge still ahead of you. Settle your bearings, check what you need for Salisbury Plain, and use the quiet minutes before 2:00 am to get dressed and gather your layers, water and torch without rushing.
Before leaving for Stonehenge, check whether your phone is in silent mode and whether this browser alarm can still make an audible sound. Raising the media volume and testing the alarm now can prevent a muted alert from passing unnoticed. The Stonehenge sunrise plan may fall apart if you close this page or allow the phone to fall asleep, because the browser alarm cannot then sound; keep the page open and the phone awake until it rings.
Stepping onto Salisbury Plain in the middle of the night can feel damper and colder than the forecast temperature suggests. At 1:44 am, moist air may settle on clothing and make exposed ground slippery, so carry a light waterproof layer and wear footwear with reliable grip. Keep that outer layer accessible rather than buried in a bag, as the open air around the stones can change how comfortable the wait for dawn feels.
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 1:44 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.