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by jcranmer 1818 days ago
Props to the Mayans, whose dates are (almost) a base-20 number counting from the Mayan date of creation. It's not fully base 20, because the 2nd digit only counts to 18 because 360 is close enough to a year. So 13.0.5.17.19 is followed by 13.0.6.0.0 instead of 13.0.5.18.0. Bonus points: no leap years to worry about!

The downside is that their full calendar is somewhat more complicated, so they would say that today is (checks) 13.0.8.11.11 8 Chuwin 9 Sek, and tomorrow is 13.0.8.11.12 9 Eb' 10 Sek (that Tzolkin calendar component doesn't work like our months do!).