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enum NodaTime.Calendars.IslamicLeapYearPattern
Assembly: NodaTime
The pattern of leap years to use when constructing an Islamic calendar.
Remarks
<para>
The Islamic, or Hijri, calendar is a lunar calendar of 12 months, each of 29 or 30 days.
The calendar can be defined in either observational or tabular terms;
Noda Time implements a tabular calendar, where a pattern of leap years (in which the last month has
an extra day) repeats every 30 years, according to one of the patterns within this enum.
</para> <para>
While the patterns themselves are reasonably commonly documented (see e.g.
<a href="https://en.wikipedia.org/wiki/Tabular_Islamic_calendar">Wikipedia</a>)
there is little standardization in terms of naming the patterns. I hope the current names do not
cause offence to anyone; suggestions for better names would be welcome.
</para> <seealso cref="M:NodaTime.CalendarSystem.GetIslamicCalendar(NodaTime.Calendars.IslamicLeapYearPattern,NodaTime.Calendars.IslamicEpoch)" />
Values
Base15
A pattern of leap years in 2, 5, 7, 10, 13, 15, 18, 21, 24, 26 and 29.
This pattern and <see cref="F:NodaTime.Calendars.IslamicLeapYearPattern.Base16" /> are the most commonly used ones,
and only differ in whether the 15th or 16th year is deemed leap.
Base16
A pattern of leap years in 2, 5, 7, 10, 13, 16, 18, 21, 24, 26 and 29.
This pattern and <see cref="F:NodaTime.Calendars.IslamicLeapYearPattern.Base15" /> are the most commonly used ones,
and only differ in whether the 15th or 16th year is deemed leap. This is
the pattern used by the BCL HijriCalendar.
Indian
A pattern of leap years in 2, 5, 8, 10, 13, 16, 19, 21, 24, 27 and 29.
HabashAlHasib
A pattern of leap years in 2, 5, 8, 11, 13, 16, 19, 21, 24, 27 and 30.