[quickthrower2]

You are correct. I am probably using the wrong words.

I saw something once on wikipedia showing more sunlight (sunshine?) hours in one place than another. So I am guessing they are measuring it based on the sunlight strength being over a certain threshold. It may have taken cloud into consideration.

I think the more important point in terms of mood is winters nearer the poles have daylight hours such that you go to work and come home in the dark, and spend all day indoors, so you don't see much sunlight. Then at the weekend you catch up but again it might just be 8 hours of sunlight and 6 hours of reasonably strong sunlight.

OTOH the long nights in the summer nearer the poles don't do much for me over a reasonable 7-8pm sunset time. If anything it makes it harder to sleep.