Haste makes waste. When Lou Talman corrected by memory of the length of the year from 365.248 to 365.242 I replied: > Thank you, Lou. That means the Gregorian is off by 26 seconds every 400 years. Not > bad. I wonder if that's why the keepers of the atomic clock add leap seconds to a day > every so often. I suspect not, but that it rather is related to the length of the day and > the slowing of the earth's rotation.
Just so no one quotes me on that, I rushed my reply. The 26 seconds is per year, so the current Gregorian Calendar would be off some 3 hours in 4 centuries. Still not bad. So in some 3 millenia remember to adjust your calendar by another day.