Cham calendar
Its origins is based on Saka Raja calendar which was influenced by the Shaka era (78 CE) Indian Hindu calendar, with the current standard called Sakawi Cham likely instituted during the reign of Po Rome of the Champa kingdom.[1] The Cham calendar (Sakawi Cam/Cham) has a system of a set of revolving cycles of days, weeks, months and years.The 1st half denotes the full moon phase called Bingun (Śukla pakṣa), while the new moon phase is called Kanem (Kṛṣṇa pakṣa).Balan Mak [Māgha] The Cham zodiac is similar to the Vietnamese zodiac in its usage and arrangement of animals, but replaces the Monkey with the turtle (kra); the cat with the rabbit (Tapay).This variant is influenced by of 12 Arabic lunar months system consisting of 29-30 days.