that's impossible, they didn't know this year would be 2012 Quoting: Anonymous Coward 1184401
you dont know how their calendar works.
No, they didn't know how our calendar works.
The Gregorian calendar, also called the Western calendar and the Christian calendar, is internationally the most widely accepted civil calendar. It was introduced by Pope Gregory XIII, after whom the calendar was named, by a decree signed on 24 February 1582
; the decree, a papal bull, is known by its opening words, Inter gravissimas. The reformed calendar was adopted later that year by a handful of countries, with other countries adopting it over the following centuries.
[link to en.wikipedia.org
Also the date that the Mayans are referring to is 12/21/12 not 12/12/12 ... although they both add up to 3 + 3 + 3 = 9
But I believe the date is 12/21/12 because the Mayans were famous for knowing planetary alignment. They would have seen this date:
December solstice 2012: 21 Dec
[link to www.timeanddate.com
Any codes put in today's calendar would be by the the folks that crafted the Gregorian calendar. Which I find credible.