Way out West

I've been reading the i newspaper this week. This feature appears on the weather page. It shows the hours between sunset and sunrise. We went through the spring equinox about 3 weeks ago so the north should now be ahead of the south for hours of daylight. I looked at Stornoway as the most northerly listed and thought that it looked to be too far ahead. Then I realised that it is also the most westerly. They are all measured against London time, but sunset will be later the further west you go because London is in the east. So I compared London with Hull. They are both the same distance east. Hull gains 4 minutes by being north. Compare Swansea, Bristol and London. They are the same distance north. Swansea is 6 minutes west of Bristol and 15 minutes west of London. But Swansea and Inverness are the same distance west. The north of Scotland is already 10 minutes lighter at night than the south of the UK.