days when Ten'ichijin is in heaven; 30th to 45th days of the sexagenary cycle
Technical term in traditional Japanese calendar lore. Refers to the period when the deity Ten'ichijin (天一神) is believed to reside in heaven, considered auspicious for certain activities. Related to the sexagenary cycle days 癸巳 (30th) through 戊申 (45th).
During the Ten'ichitenjō period, directional taboos are said to be relaxed because Ten'ichijin is in heaven.
The 30th day of the sexagenary cycle, marking the start of the Ten'ichitenjō period.
The 45th day of the sexagenary cycle, marking the end of the Ten'ichitenjō period.
Compound of 天一 (Ten'ichi, referring to the deity Ten'ichijin) and 天上 (tenjō, 'heaven' or 'the heavens'). The term is derived from traditional Japanese onmyōdō (陰陽道) calendar practices.