The Lunisolar holiday recurrence rule type is for holidays that are based on lunar events that either occur after a given solar event has occurred (that solar event can be a daily event or an annual event).
Adhi Navam Full Moon Poya Day, Sri Lanka
These holidays are calculated using default lunar data source of the parent holidays set (or a specific lunar data source if the use set's default is unchecked).
See also: solar holidays rules, other types of recurrence rules and recurrence rules options.
Topic 176815, last updated on 16-Apr-2020