In solar calendars, this is done by adding to a common year of 365 days, an extra day ("leap day" or "
intercalary day") about every four
Kaynak: Intercalation (timekeeping)A leap year (or
intercalary or bissextile year) is a year containing one additional day (or, in the case of lunisolar calendar s, a month)
Kaynak: Leap yearAyyám-i-Há refers to a period of four or five
intercalary day s in the Bahá'í calendar , where Bahá'ís celebrate the Festival of Ayyám-i-Há
Kaynak: Ayyám-i-HáIntercalary meristem:
intercalary. In angiosperms,
intercalary meristems occur only in monocot (in particular, grass) stems at the base of
Kaynak: Meristem Mercedonius, also known as Intercalaris, was the
intercalary month added in leap year s of the Roman calendar . The resulting year was
Kaynak: MercedoniusA year in the Chinese calendar begins on the second new moon after the winter solstice, unless an
intercalary month moves it to the third
Kaynak: Chinese calendarSpecies of this family have transition zone with
intercalary meristem subdivided so that there are a number of secondary stipes in
Kaynak: LessoniaceaeThe intercalated duct, also called
intercalary duct, is the portion of an exocrine gland leading directly from the acinus to a striated
Kaynak: Intercalated ductThe days of the
intercalary month inserted in
intercalary years (27 days) were divided into: 1st day of the
intercalary month: 1 day for
Kaynak: Roman calendarLunisolar calendar system, in which the lunar years and the solar years are synchronized by adding in an
intercalary month in a leap year .
Kaynak: Nisan-yearsAccording to the later writers Censorinus and Macrobius , the ideal
intercalary cycle consisted of ordinary years of 355 days alternating
Kaynak: Julian calendar354 days per year), which needed
intercalary months to stay in step with the seasons. (
intercalary months) were being added in each 19-
Kaynak: Ancient Macedonian calendarThe Julian reform lengthened seven months and replaced the
intercalary month with an
intercalary day to be added every four years to
Kaynak: Calendar reforma simple five year cycle would be insufficiently accurate; the sequence of
intercalary months is completed every thirty years, after five
Kaynak: Coligny calendarMaimonides ' Hokmat ha-'Ibbur, a treatise on the computation of the
intercalary month. the computation of the
intercalary month, with a
Kaynak: Eliezer ben Solomon Ashkenazibeginning when a new crescent moon was first sighted low on the western horizon at sunset, plus an
intercalary month inserted as needed by decree.
Kaynak: Babylonian calendarTo keep a 12-month lunar year in pace with the solar year, an
intercalary 13th month would have to be added on seven occasions during the
Kaynak: Metonic cycle