Bahá'í calendar

The Bahá'í calendar, named the Badí‘ calendar (badí‘ means wondrous or uniqueBahai library: Bibliography for the Tablets of Baha'u'llah: List of citations and resources for Tablets revealed 1863-68. Kitáb-i-Badí' ("The Wondrous Book," "the Unique Book"). Prepared by Jonah Winters for the Wilmette Institute.), is a solar calendar used by Bábism and the Bahá'í Faith. 

The calendar was created by the Báb and refined by Bahá'u'lláh and the Universal House of Justice. 

Each year starts on "Naw-Rúz", the vernal equinox (in March), and has 19 months. Each month has 19 days. An extra 4 or 5 days are added between the last two months so that the next year also starts on the equinox. Each day begins at sunset. The time of sunset and the time of the equinox are calculated by astronomers. 

The months are known by their Arabic names. The days within each month also use the same names. Here they are with their usual English translations:

Day or 
Month #Arabic Name English Translation 1  Bahá   Splendor 2  Jalál   Glory 3  Jamál   Beauty 4  `Azamat   Grandeur 5  Núr   Light 6  Rahmat   Mercy 7  Kalimát   Words 8  Kamál   Perfection 9  Asmá'   Names 10  `Izzat   Might 11  Mashíyyat   Will 12  `Ilm   Knowledge 13  Qudrat   Power 14  Qawl   Speech 15  Masá'íl   Questions 16  Sharaf   Honor 17  Sultán   Sovereignty 18  Mulk   Dominion 19  `Alá'   Loftiness
Each group of 19 years is called a Váhid. 

Each group of 19 Váhids is called a Kull-i-Shay’.

Year 1 of the Badí' calendar started at Naw-Rúz in 1844 A.D.

Sources

Category:Calendars
Category:Bahá'í Faith
Category:Babism