On March 21 Baha'is celebrate the beginning of a new year. Called Naw-Ruz, which means "new day" in Persian, it is one of nine Baha'i holy days on which Baha'is suspend work and school.
Baha'is follow the Badi ("wonderful") calendar, which consists of 19 months of 19 days each (361 days), with the addition of "Intercalary Days" (four in ordinary and five in leap years) between the 18th and 19th months to adjust the calendar to the solar year.
The months are named after the attributes of God. The Baha’i New Year is astronomically fixed and begins with the March equinox (March 21). The Baha’i Era commenced with the year of the Bab’s declaration (1844 A.D.)