How to use the online alarm clock
As you finish watching the sunrise from Snowdon’s summit at 7:08 am, set this alarm as the signal to pack up and begin your descent. The early light can make it tempting to linger, but a clear alert keeps your leaving time tied to the plan rather than the view. You will be well into the route down before 8:00 am.
For a Snowdon departure, the sound setting matters as much as the chosen time. Check that silent mode, media volume and any connected earbuds will not divert or mute the alert, then run a brief test while you are still looking at the screen. If the browser page is closed or your phone sleeps, no sound will play, so the Snowdon sunrise needs a separate backup alarm.
Leaving the summit this early, keep breakfast simple enough that packing and descending are not delayed: carry water or a warm drink in a secure flask, plus something easy to eat such as a banana or oat bar. Save a larger cooked breakfast and an uncovered hot drink for after the steepest section or when you reach the valley.
Common questions
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 7:08 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.
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.
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