In article , Martin Sykes
writes

This site sort of confirms what i thought: http://www.worldtime.com

On the following page it gives sunset and sunrise times for various cities.
Edinburgh, Liverpool and Cardiff have about the same sunset. Coventry and
Newcastle have the same slightly earlier sunset and they're all later than
London. So, it's the east-west that affects the sunset time, and its the
north-south that affects how strong the sunlight is.

Around the equinox (as we are now), north and south have similar length
days, but the latitude comes into play the further away we are from the
equinox roughly 8 mins for every 1 degree of latitude.

Think about it - at the equator, the day length in our midsummer is 12
hours; at the N pole the day length is 24 hours. So either there is a
line somewhere, N of which the day is 24 hours and S of which, 12 hours;
or the day gradually grown longer the further north you go.


--
Kay Easton

Edward's earthworm page:
http://www.scarboro.demon.co.uk/edward/index.htm