Well thanks to leap years, this Christmas day occurs 3/4 of a day earlier
than Christmas 2000, so even less chance I guess. Maybe next year, when
it's back to being later again!

It isnt the fault of the leap-year that has brought Christmas earlier by 3/4
of a day. If we didn't have any leap-years at all, then Christmas Day would
drift earlier by approximately 1/4 of a day EVERY year. Its thanks to
leap-years that the correction is made, thus keeping it no more than 1 day
early.

Leap-years are a good thing. If we had no leap-years for 100 years, then
Christmas Day would be 25 days early.

;-)

Brendan