What does taboo mean on the calendar and what does appropriateness mean?

Taboos on the calendar refer to things that should not be done that day, while appropriateness refers to things that are suitable for that day.

Taboos mainly appear in the calendar of the yellow calendar. In the modern Gregorian calendar, the main contents include: Gregorian calendar, lunar calendar and Ganzhi calendar, which are related to good or ill luck, evil, evil, harmony, singing, Ganzhi, the twenty-four solar terms, the twelve gods, the duty day, the fetal god, Peng Zu's taboo, the six obsidians, the nine planets, the fleeting time, the tradition, the three yuan and the nine lucky games, and so on.

Extended data:

China's traditional calendar is based on heavenly stems and earthly branches's arrangement, combination and circulation, which means circulation and reappearance. It is this reappearance that makes it meaningful to choose a date to avoid it.

The fundamental basis for the ancients to make calendars and determine auspicious days was the sun, the moon and the stars. Among them, the stars are the most critical factor in determining the date, and the Gregorian calendar basically does not consider these, so there is no so-called taboo.