In article
,
Nick writes:
Notice that the Met Office reported clear, but "night time" conditions
for 0800 GMT for London - despite the fact that according to
timeanddate.com, the sun rose at 0740. So where do they get the data
from? They don't seem to do the same at the other end of the day, e.g.
they've always shown "day time" conditions for 1600 GMT, even early in
this month.

I noticed that too. Perhaps they just use the sunrise time for mid month
throughout January, and don't bother to adjust it day by day?
--
John Hall
"Acting is merely the art of keeping a large group of people
from coughing."
Sir Ralph Richardson (1902-83)