Rokuyo
🗓️ Rokuyo — Japan’s Six-Day Cycle
Rokuyo is a set of six labels from the Japanese lunisolar calendar — Senshō, Tomobiki, Senbu, Butsumetsu, Taian and Shakkō — that cycle in order. They have long been consulted when choosing dates for weddings and ceremonies.
Today · July 31, 2026
Taian
大安
Lucky all day — the most auspicious
Rokuyo this month (July)
Upcoming Taian (lucky days)
Taian is considered the most auspicious Rokuyo day — often chosen for weddings, registrations and openings.
Look up any date
The six Rokuyo
What is Rokuyo?
Rokuyo is determined mechanically from the month and day of the Japanese lunisolar calendar; it spread on printed calendars from the Meiji era. This site derives the lunar date from the astronomically computed new moon and applies the traditional rule.
※ The notion of lucky and unlucky days is a custom, not a scientific claim. Enjoy it as one traditional guide among many. About our data