[muir_redwoods]

So the first year of the last decade was in the previous millennium and the other 9 were in this millennium?

Really?

[going hot]

The last date of the last mil was 12-31-99

The first date of the current mil , also the first day of the last decade, was 1-1-00

From 1-1-00 through 12-31-09 is ten years.

But, then, you already know that, you simply choose to define "decade" as starting 0n 1-1-01.

One could just as easily start a decade on 3-11-04, and count ten years, but it does conform with what is accepted, by most people anyway, as the standard definition of the term when used in denoting 10 year periods with the second unit being the same in a four figure year date.

Rock on, and Happy New Year, regardless.

Now, I think I will go for a ride, the sun just came out. :-)