"Gavin Staples" wrote in message
...

I wonder if anyone can give the precise reasons for why it gets marginally
darker in the mornings for a week or so after Dec 21st. The late Michael
Hunt from Anglia TV gave a description as to why. However, this was now
over
20 years ago and I cannot remember the precise reasons. Apart from the
fact
it is due to the fact that the earth's rotation around the sun is not a
precise circle, despite popular belief that it is. I cannot remember the
other reasons.
I wonder if anyone on this ng does know why?

Gavin.

Gavin, Google or similar on "Equation of Time".

Regards, Roger