50 	u64 u64tmp, udays, century, year;  in time64_to_tm()  local
80 	 * (fictitious) calendar where the year starts in March, month = 2  in time64_to_tm()
82 	 * mathematically convenient because the day of the year does not  in time64_to_tm()
83 	 * depend on whether the year is leap or not. For instance:  in time64_to_tm()
85 	 * March 1st		0-th day of the year;  in time64_to_tm()
87 	 * April 1st		31-st day of the year;  in time64_to_tm()
89 	 * January 1st		306-th day of the year; (Important!)  in time64_to_tm()
91 	 * February 28th	364-th day of the year;  in time64_to_tm()
92 	 * February 29th	365-th day of the year (if it exists).  in time64_to_tm()
116 	year		= 100 * century + year_of_century;  in time64_to_tm()
124 	 * Recall that January 1st is the 306-th day of the year in the  in time64_to_tm()
130 	year		= year + is_Jan_or_Feb - 6313183731940000ULL;  in time64_to_tm()
136 	result->tm_year = (long) (year - 1900);  in time64_to_tm()