Chinese New Year 10-year cycle of heavenly stems. Each of the ten heavenly stems is associated with one of the five elements of Chinese astrology, namely: Wood, Fire, Earth, Metal, and Water. The elements are rotated every two years while a yin and yang association alternates every year. The elements are thus distinguished: Yang Wood, Yin Wood, Yang Fire, Yin Fire, etc. These produce a combined cycle that repeats every 60 years. For example, the year of the Yang Fire Rat occurred in 1936 and in 1996, 60 years apart. Many people inaccurately calculate their Chinese birth-year by converting it from their Gregorian
Chinese New Year religious holiday. Effectively from 6 December 1967, until 1998, the spiritual practice to celebrate the Chinese New Year by Chinese families was restricted specifically only inside of the Chinese house. This restriction is made by Indonesian government through a Presidential Instruction, "Instruksi Presiden No.14 Tahun 1967", signed by President Suharto. This restriction is ended when the regime has changed and the President Suharto was overthrown. The celebration is conducted unofficially by Chinese community from 1999 to 2000. On 17 January 2000, the President Abdurrahman Wahid issued a Presidential Decree through "Keputusan Presiden RI No 6 Tahun 2000" to annul "Instruksi