How about February 6th?

Ok, the sixth day of February is the day of "harmony between heaven and earth", which is the strongest day in a month.

Only suitable for sacrifice, worship and some commemorative activities, not suitable for marriage.

Avoid traveling. According to folklore experts, this day is still a yellow sand day, which is not suitable for traveling. In ancient books, the days that are not suitable for traveling belong to red sand day and yellow sand day, and one woman marries three households. It's hard to go home when you're away from home. Note: The above content is feudal superstition, please don't believe it.