private static double CurrentJulianDate()
{
JulianCalendar cal = new JulianCalendar();
int isJanFeb = (14 - cal.GetMonth(DateTime.UtcNow)) / 12;
int years = cal.GetYear(DateTime.UtcNow) + 4800 - isJanFeb;
int monthsMod = cal.GetMonth(DateTime.UtcNow) + (12 * isJanFeb) - 3;
double dayNumber =
cal.GetDayOfMonth(DateTime.UtcNow)
+ Math.Floor((double)(153 * monthsMod + 2) / 5)
+ 365 * years + Math.Floor((double)years / 4) - 32083;
double julianDate = dayNumber
+ ((double)cal.GetHour(DateTime.UtcNow) - 12) / 24
+ (double)cal.GetMinute(DateTime.UtcNow) / 1440
+ (double)cal.GetSecond(DateTime.UtcNow) / 86400;
return(julianDate);
}