[iPhone] julian > Gregorian day
+ ( float )julianToDayCalendar:( float )Julian { float a, b, c, d, e, m, day; a = Julian + 32044 ; b = floor ((( 4 * a) + 3 ) / 146097 ); c = a - floor (( 146097 * b) / 4 ); d = floor ((( 4 * c) + 3 ) / 1461 ); e = c - floor (( 1461 * d) / 4 ); m = floor ((( 5 * e) + 2 ) / 153 ); day = e - floor ((( 153 * m) + 2 ) / 5 ) + 1 ; return day; }