public static AASCalendarDate DateOfPesach(long Year, bool bGregorianCalendar = true)
{
//What will be the return value
AASCalendarDate Pesach = new AASCalendarDate();
long C = AASDate.INT(Year / 100.0);
long S = AASDate.INT((3 * C - 5) / 4.0);
if (bGregorianCalendar == false)
{
S = 0;
}
long A = Year + 3760;
long a = (12 * Year + 12) % 19;
long b = Year % 4;
double Q = -1.904412361576 + 1.554241796621 * a + 0.25 * b - 0.003177794022 * Year + S;
long INTQ = AASDate.INT(Q);
long j = (INTQ + 3 * Year + 5 * b + 2 - S) % 7;
double r = Q - INTQ;
if ((j == 2) || (j == 4) || (j == 6))
{
Pesach.Day = INTQ + 23;
}
else if ((j == 1) && (a > 6) && (r >= 0.632870370))
{
Pesach.Day = INTQ + 24;
}
else if ((j == 0) && (a > 11) && (r >= 0.897723765))
{
Pesach.Day = INTQ + 23;
}
else
{
Pesach.Day = INTQ + 22;
}
if (Pesach.Day > 31)
{
Pesach.Month = 4;
Pesach.Day -= 31;
}
else
{
Pesach.Month = 3;
}
Pesach.Year = A;
return(Pesach);
}
public static long DaysInYear(long Year)
{
//Find the previous civil year corresponding to the specified jewish year
long CivilYear = Year - 3761;
//Find the date of the next Jewish Year in that civil year
AASCalendarDate CurrentPesach = DateOfPesach(CivilYear);
bool bGregorian = AASDate.AfterPapalReform(CivilYear, CurrentPesach.Month, CurrentPesach.Day);
AASDate CurrentYear = new AASDate(CivilYear, CurrentPesach.Month, CurrentPesach.Day, bGregorian);
AASCalendarDate NextPesach = DateOfPesach(CivilYear + 1);
AASDate NextYear = new AASDate(CivilYear + 1, NextPesach.Month, NextPesach.Day, bGregorian);
return((long)(NextYear.Julian - CurrentYear.Julian));
}
public static AASCalendarDate JulianToGregorian(long year, long month, long day)
{
AASDate date = new AASDate(year, month, day, false);
date.SetInGregorianCalendar(true);
long gregYear = 0;
long gregMonth = 0;
long gregDay = 0;
long hour = 0;
long minute = 0;
double second = 0;
date.Get(ref gregYear, ref gregMonth, ref gregDay, ref hour, ref minute, ref second);
AASCalendarDate gregorianDate = new AASCalendarDate {
Year = gregYear, Month = gregMonth, Day = gregDay
};
return(gregorianDate);
}
public static AASCalendarDate GregorianToJulian(long year, long month, long day)
{
AASDate date = new AASDate(year, month, day, true);
date.SetInGregorianCalendar(false);
long julYear = 0;
long julMonth = 0;
long julDay = 0;
long hour = 0;
long minute = 0;
double second = 0;
date.Get(ref julYear, ref julMonth, ref julDay, ref hour, ref minute, ref second);
AASCalendarDate julianDate = new AASCalendarDate {
Year = julYear, Month = julMonth, Day = julDay
};
return(julianDate);
}
public static AASCalendarDate JulianToGregorian(long Year, long Month, long Day)
{
AASDate date = new AASDate(Year, Month, Day, false);
date.SetInGregorianCalendar(true);
long gregYear = 0;
long gregMonth = 0;
long gregDay = 0;
long Hour = 0;
long Minute = 0;
double Second = 0;
date.Get(ref gregYear, ref gregMonth, ref gregDay, ref Hour, ref Minute, ref Second);
AASCalendarDate GregorianDate = new AASCalendarDate()
{
Year = gregYear, Month = gregMonth, Day = gregDay
};
return(GregorianDate);
}
public static AASCalendarDate DateOfPesach(long Year, bool bGregorianCalendar = true)
{
//What will be the return value
AASCalendarDate Pesach = new AASCalendarDate();
long C = AASDate.INT(Year / 100.0);
long S = AASDate.INT((3 * C - 5) / 4.0);
if (bGregorianCalendar == false)
S = 0;
long A = Year + 3760;
long a = (12 * Year + 12) % 19;
long b = Year % 4;
double Q = -1.904412361576 + 1.554241796621 * a + 0.25 * b - 0.003177794022 * Year + S;
long INTQ = AASDate.INT(Q);
long j = (INTQ + 3 * Year + 5 * b + 2 - S) % 7;
double r = Q - INTQ;
if ((j == 2) || (j == 4) || (j == 6))
Pesach.Day = INTQ + 23;
else if ((j == 1) && (a > 6) && (r >= 0.632870370))
Pesach.Day = INTQ + 24;
else if ((j == 0) && (a > 11) && (r >= 0.897723765))
Pesach.Day = INTQ + 23;
else
Pesach.Day = INTQ + 22;
if (Pesach.Day > 31)
{
Pesach.Month = 4;
Pesach.Day -= 31;
}
else
Pesach.Month = 3;
Pesach.Year = A;
return Pesach;
}
public static AASCalendarDate JulianToGregorian(long Year, long Month, long Day)
{
AASDate date = new AASDate(Year, Month, Day, false);
date.SetInGregorianCalendar(true);
long gregYear = 0;
long gregMonth = 0;
long gregDay = 0;
long Hour = 0;
long Minute = 0;
double Second = 0;
date.Get(ref gregYear, ref gregMonth, ref gregDay, ref Hour, ref Minute, ref Second);
AASCalendarDate GregorianDate = new AASCalendarDate() { Year = gregYear, Month = gregMonth, Day = gregDay };
return GregorianDate;
}
