: You guys haven't done your homework.
: The Mayan calendar was 365 days. The 5(,25)
Actually, it's .2425. By our modern calender, we have a 365 days a year, except when the year is divisible by four (when there are 366 days), except when the year is divisible by 100 (when there are 365 days again), except when the year is divisibly by 400 (when there are 366 days again). Thus, the actual Earth rotations per Earth orbits is:
365
+ 1/4
- 1/100
+ 1/400
or
365.0000
+ 0.2500
- 0.0100
+ 0.0025
=
365.2425
And seeing how the Mayans used a stellar calender instead of a lunar or solar one, I suspect they knew all that.
One of these days, someone's gonna fix those little annoyances of Earth's mass and velocity, to give us a year with exactly 12 months of exactly 30 days of exactly 24 hours each, and a nice gravitiational acceleration of 10m/s^2 (instead of that annoying 9.8). That, or someone will simply adjust the calender and measurement system. (I've got my own calender and measurement system designed already, though not even I use them).
