Oh, wait until December 6 or 7. :-P
OK, I’ve had a “weird” fascination with the concept of Solar Time recently. Solar Time is basically the true, natural time that a sundial would measure. Solar Time does vary from the standard time...as much as 16 minutes fast or slow (plus latitudinal corrections besides) because the earth’s orbit is elliptical.
What does this have to do with Christmas?
Coincidental or not, December 25th. is one of the 4 days of the year when Solar Time and Standard Time (i.e. Greenwich Mean Time) match exactly.