Seimei, the Boy Onmyoji
Seimei, the Boy Onmyoji Who Chases Demons
Rokuyo: six days, hourly fortune
Rokuyo is one of Japan's traditional calendar annotations, a divination that determines the fortune of dates through six types of yo (days). The six types are Sensho, Tomobiki, Senpu, Butsumetsu, Taian, and Shakko. It was introduced from China around the 14th century and became widespread after the late Edo period.
According to Wikipedia, Rokuyo is considered a transformation of the Chinese 'Rikujin' system, with the 'Rikujin Jika' devised by Li Chunfeng of the Tang dynasty as its prototype. It is estimated to have been transmitted to Japan during the Muromachi period, and was established as the modern six-type system through the Edo period.
Official 6 types (NDL, Wikipedia cross-verified): Taian (all matters auspicious, especially good for weddings), Sensho (to act first is to win, morning auspicious, afternoon inauspicious), Tomobiki (drawing friends, good for celebrations but avoid funerals), Senpu (to act first is to lose, morning inauspicious, afternoon auspicious), Butsumetsu (all matters inauspicious, funerals and memorial services acceptable), Shakko (inauspicious day, only noon auspicious, beware of fire and blades).
Each Rokuyo has time-of-day fortune: Taian is auspicious all day, Sensho and Senpu have opposite morning/afternoon fortune, Tomobiki is auspicious morning/evening but inauspicious at noon, Shakko is auspicious only at noon, Butsumetsu is inauspicious all day.
Official formula (Wikipedia, nj-clucker.com cross-verified): Calculated by (Lunar Month + Lunar Day) ÷ 6 remainder. Remainder 0=Taian, 1=Shakko, 2=Sensho, 3=Tomobiki, 4=Senpu, 5=Butsumetsu.
Fixed mapping for the 1st of each month: January/July 1st=Sensho, February/August 1st=Tomobiki, March/September 1st=Senpu, April/October 1st=Butsumetsu, May/November 1st=Taian, June/December 1st=Shakko. Leap months are the same as the previous month. This service converts solar to lunar dates using the lunar-javascript library and applies this formula.
Each Rokuyo has different time-of-day fortune (NDL official): Taian is auspicious morning, noon, and afternoon; Sensho is auspicious morning, auspicious noon, inauspicious afternoon; Tomobiki is auspicious morning, inauspicious noon, auspicious afternoon; Senpu is inauspicious morning, inauspicious noon, auspicious afternoon; Butsumetsu is inauspicious all day; Shakko is inauspicious morning, auspicious noon, inauspicious afternoon.
This time-of-day fortune can be used to decide when to proceed with important matters during the day.
Rokuyo is a traditional calendar annotation recommended for reference and enjoyment. Even if Butsumetsu or Shakko appears, do not despair; refer to time-of-day fortune and utilize auspicious times like noon. Especially for Shakko, heed the traditional meaning of being careful with fire and blades.
Six Rokuyo (Taian, Shakko, Sensho, Tomobiki, Senpu, Butsumetsu) official meanings (Wikipedia, NDL cross-verified), Formula (Lunar Month + Lunar Day) ÷ 6 remainder (Wikipedia, nj-clucker.com cross-verified), Time-of-day fortune (NDL official)
Omikuji: 7 ranks, 10 areas
Kyusei: 9-year fortune cycle
Rokusei: 12-year fortune cycle
Rokuyo is one of Japan's traditional calendar annotations, a divination that determines the fortune of dates through six types of yo (days). The six types are Sensho, Tomobiki, Senpu, Butsumetsu, Taian, and Shakko. It was introduced from China around the 14th century and became widespread after the late Edo period.
Official 6 types (NDL, Wikipedia cross-verified): Taian (all matters auspicious, especially good for weddings), Sensho (to act first is to win, morning auspicious, afternoon inauspicious), Tomobiki (drawing friends, good for celebrations but avoid funerals), Senpu (to act first is to lose, morning inauspicious, afternoon auspicious), Butsumetsu (all matters inauspicious, funerals and memorial services acceptable), Shakko (inauspicious day, only noon auspicious, beware of fire and blades).
Official formula (Wikipedia, nj-clucker.com cross-verified): Calculated by (Lunar Month + Lunar Day) ÷ 6 remainder. Remainder 0=Taian, 1=Shakko, 2=Sensho, 3=Tomobiki, 4=Senpu, 5=Butsumetsu.
Rokuyo, Seimei, the Boy Onmyoji, Omikuji, Kyusei Kigaku, Rokusei