Shortest day

 
The days are appreciably shorter here than in 'the deep south' ( ie London)  and when we have it , the sun doesn't get much higher than this, looking south.
And the data to prove it

Sunrise in London is 8.04 am. Here it is 9.04 am
Sunset  in London is 15.53 and here is 15.15

So that is an hours' less potential sunlight in the  morning and 38 minutes in the afternoon.

But if you were in Unst, the most northerly Island in Shetland , its even shorter