Julian.fromFullDate constructor
Create a Julian date object from a year , mon , day, hour and min.
Implementation
Julian.fromFullDate(
int year, // i.e., 2004
int mon, // 1..12
int day, // 1..31
int hour, // 0..23
int min, // 0..59
{double sec = 0.0}) {
late int n;
int f1 = ((275.0 * mon) / 9.0).round();
int f2 = ((mon + 9.0) / 12.0).round();
if (isLeapYear(year)) {
// Leap year
n = f1 - f2 + day - 30;
} else {
// Common year
n = f1 - (2 * f2) + day - 30;
}
double dblDay = n + (hour + (min + (sec / 60.0)) / 60.0) / 24.0;
initialize(year, dblDay);
}