Unfortunately, this was not actually a day. When the clock struck midnight at the end of February 28, 2000, it should have become March 1, 2000. But just about nobody knows the official rules of the whole leap year deal anymore, and those who do are too few to have any influence. What are the rules, you ask? Well yes, there is a leap year every 4 years, but not on years ending in 00. For those years, different rules apply, namely that every 400 years there is a leap year... but not on the multiples of 400, but during the years 1400, 1800, 2200, etc.

Some people tell me I'm wrong and that the leap years do occur on the multiples of 400 (and not on the other multiples of 100), and that this is why 2000 was considered a leap year. I very much doubt this, even if the multiples of 400 thing is right. In fact, to anyone who's still alive when 2100 rolls around, I'll bet you \$1.29 that that year will be considered a leap year by the mindless masses.

So why does this matter, and wtf cares? It matters because we're putting in days that don't belong there! We're going to ruin the entire calendar! In fact, in about 90 / (3/400) = 12000 years from now, humans somewhere will be making preparations for the fall harvest, and all of a sudden it will be winter, and they will freeze and starve to death because they didn't buy warm jackets yet, and all their food has been frozen and destroyed out in the fields. And that will be the end of civilization was we know it.