Critical Dates

J R Stockton’s Critical Dates: 2112-12-21 is “doubly palindromic as DDMMYYYY.” So is 3003-03-30. Friday, October 13, 4772 marks the completion of the Mayan Great Cycle. And most importantly, at 15:30:08 GMT on Sunday, December 4, the year 292,277,026,596 A.D, the UNIX 64-bit signed time_t fails (seconds from 1970).