The distance between the sun and 12 is divided by two, because the clock face only shows half the day.
If we had a clock with 24 hours in the circle and used the same method, it’d be the same as pointing at the sun and saying: South is where the sun will be at noon.
Like this
What if you go on a trip to Thailand and get turned around in the jungle?
That gives you a very approximate direction.
It’s the same method.
The distance between the sun and 12 is divided by two, because the clock face only shows half the day.
If we had a clock with 24 hours in the circle and used the same method, it’d be the same as pointing at the sun and saying: South is where the sun will be at noon.
It’s useless in the jungle, as you can’t see the sun.