JulianToSdn 217 ext/calendar/calendar.c {"Julian", "CAL_JULIAN", JulianToSdn, SdnToJulian, 12, 31, JulianToSdn 499 ext/calendar/calendar.c RETURN_LONG(JulianToSdn(year, month, day)); JulianToSdn 76 ext/calendar/sdncal.h long int JulianToSdn(int year, int month, int day);