def new_year(cls, gregorian_year):
"""Return the list of ordinal dates of Tibetan New Year in
Gregorian year, 'gregorian_year'."""
dec31 = GregorianDate.year_end(gregorian_year)
t_year = cls.fromordinal(dec31).year
return list_range(
[cls.losar(t_year - 1), cls.losar(t_year)],
GregorianDate.year_range(gregorian_year))
def hindu_lunar_holiday(l_month, l_day, gregorian_year):
"""Return the list of ordinal dates of occurrences of Hindu lunar
month, month, day, day, in Gregorian year, 'gregorian_year'."""
l_year = HinduLunarDate.fromordinal(
GregorianDate.new_year(gregorian_year)).year
date1 = hindu_date_occur(l_month, l_day, l_year)
date2 = hindu_date_occur(l_month, l_day, l_year + 1)
return list_range([date1, date2], GregorianDate.year_range(gregorian_year))
def hindu_lunar_event(l_month, tithi, tee, gregorian_year):
"""Return the list of ordinal dates of occurrences of Hindu lunar tithi
prior to sundial time, tee, in Hindu lunar month, l_month,
in Gregorian year, 'gregorian_year'."""
l_year = HinduLunarDate.fromordinal(
GregorianDate.new_year(gregorian_year)).year
date1 = hindu_tithi_occur(l_month, tithi, tee, l_year)
date2 = hindu_tithi_occur(l_month, tithi, tee, l_year + 1)
return list_range([date1, date2], GregorianDate.year_range(gregorian_year))
def julian_in_gregorian(julian_month, julian_day, gregorian_year):
"""Return the list of the ordinal dates of Julian month 'julian_month', day
'julian_day' that occur in Gregorian year 'gregorian_year'."""
jan1 = GregorianDate.new_year(gregorian_year)
y = JulianDate.fromordinal(jan1).year
y_prime = 1 if (y == -1) else (y + 1)
date1 = JulianDate(y, julian_month, julian_day).toordinal()
date2 = JulianDate(y_prime, julian_month, julian_day).toordinal()
return list_range([date1, date2], GregorianDate.year_range(gregorian_year))
def in_gregorian(cls, coptic_month, coptic_day, gregorian_year):
"""Return the list of the ordinal dates of Coptic month 'coptic_month',
day 'coptic_day' that occur in Gregorian year 'gregorian_year'."""
jan1 = GregorianDate.new_year(gregorian_year)
y = cls.fromordinal(jan1).year
date1 = CopticDate(y, coptic_month, coptic_day).toordinal()
date2 = CopticDate(y + 1, coptic_month, coptic_day).toordinal()
return list_range([date1, date2],
GregorianDate.year_range(gregorian_year))
def yahrzeit_in_gregorian(self, gregorian_year):
"""Return the list of the ordinal dates of death date death_date (yahrzeit)
that occur in Gregorian year 'gregorian_year'."""
jan1 = GregorianDate.new_year(gregorian_year)
y = HebrewDate.fromordinal(jan1).year
date1 = self.yahrzeit(y)
date2 = self.yahrzeit(y + 1)
return list_range([date1, date2],
GregorianDate.year_range(gregorian_year))
def birthday_in_gregorian(self, gregorian_year):
"""Return the list of the ordinal dates of Hebrew birthday
birthday that occur in Gregorian 'gregorian_year'."""
jan1 = GregorianDate.new_year(gregorian_year)
y = HebrewDate.fromordinal(jan1).year
date1 = self.birthday(y)
date2 = self.birthday(y + 1)
return list_range([date1, date2],
GregorianDate.year_range(gregorian_year))
def in_gregorian(cls, month, day, gregorian_year):
"""Return list of the ordinal dates of Islamic month 'month', day 'day' that
occur in Gregorian year 'gregorian_year'."""
jan1 = GregorianDate.new_year(gregorian_year)
y = cls.fromordinal(jan1).year
date1 = IslamicDate(y, month, day).toordinal()
date2 = IslamicDate(y + 1, month, day).toordinal()
date3 = IslamicDate(y + 2, month, day).toordinal()
return list_range([date1, date2, date3],
GregorianDate.year_range(gregorian_year))
def tzom_tevet(cls, gregorian_year):
"""Return the list of ordinal dates for Tzom Tevet (Tevet 10) that
occur in Gregorian year 'gregorian_year'. It can occur 0, 1 or 2 times per
Gregorian year."""
jan1 = GregorianDate.new_year(gregorian_year)
y = HebrewDate.fromordinal(jan1).year
d1 = HebrewDate(y, HebrewMonth.TEVET, 10).toordinal()
d1 = d1 + (1 if weekday_fromordinal(d1) == DayOfWeek.SATURDAY else 0)
d2 = HebrewDate(y + 1, HebrewMonth.TEVET, 10).toordinal()
d2 = d2 + (1 if weekday_fromordinal(d2) == DayOfWeek.SATURDAY else 0)
dates = [d1, d2]
return list_range(dates, GregorianDate.year_range(gregorian_year))
def in_gregorian(cls, month, day, gregorian_year):
"""Return list of the ordinal dates of Hebrew month, 'month', day, 'day',
that occur in Gregorian year 'gregorian_year'."""
jan1 = GregorianDate.new_year(gregorian_year)
y = HebrewDate.fromordinal(jan1).year
date1 = HebrewDate(y, month, day).toordinal()
date2 = HebrewDate(y + 1, month, day).toordinal()
# Hebrew and Gregorian calendar are aligned but certain
# holidays, i.e. Tzom Tevet, can fall on either side of Jan 1.
# So we can have 0, 1 or 2 occurences of that holiday.
dates = [date1, date2]
return list_range(dates, GregorianDate.year_range(gregorian_year))