public bool IsIsraeliDaylightSavingsTime(CalendarDate date, CalendarEngine engine)
{
// Get Jewish year of Yom Kippur in the passed Gregorian year
int a = engine.absoluteFromGregorianDate(new CalendarDate(31, 12, date.Year));
CalendarDate jewishCurrent = engine.jewishDateFromAbsolute(a);
// Get Last Friday before 2nd of April
int dstBegin = engine.absoluteFromGregorianDate(new CalendarDate(2, 4, date.Year)); // 2 April
dstBegin--; // get the day before 2nd of April
while (engine.GetWeekday(dstBegin) != 5) // gets the weekday, 5 = Friday
{
dstBegin--; // counts to the previous day until Friday
}
// Get Sunday between Rosh Hashana and Yom Kippur
// Take the first Sunday on or after 3rd of Tishri
int dstEnd = engine.absoluteFromJewishDate(new CalendarDate(3, 7, jewishCurrent.Year));
while (engine.GetWeekday(dstEnd) != 0) // gets the weekday, 0 = Sunday
{
dstEnd++; // counts to the next day until Sunday
}
// Check if the current date is between the start and end date ...
int currentDate = engine.absoluteFromGregorianDate(date);
if (currentDate >= dstBegin && currentDate < dstEnd)
{
return(true);
}
else
{
return(false);
}
}
public int GetWeekdayOfHebrewDate(int hebDay, int hebMonth, int hebYear, CalendarEngine engine)
{
int absDate = engine.absoluteFromJewishDate(new CalendarDate(hebDay, hebMonth, hebYear));
return(absDate % 7);
}