When will the Northeast Chinese New Year son-in-law return to her mother's house?

Usually in the third grade. But it is not absolute, mainly depending on the date when this place "sent to God".

On the evening of the 30th, the family will receive the gods (offering sacrifices to ancestors), and the next night, they will send them to God and stop offering sacrifices (putting away ancestral tablets).

On the third day, the daughter and son-in-law can go back to their parents' home.

The key is not to let the daughter and son-in-law see the ancestral memorial tablet of the father-in-law's family, so when will the land god send it, the daughter and son-in-law can come to the door. This is an old almanac, and there is no such rule long ago!

Now it's time to go back if you want, and our ancestors can't help it!