Tuesday, abbreviated as Tue.

Wednesday: Wednesday, abbreviated as Wed.

Thursday, abbreviated as Thur.

Friday: Friday, abbreviated as Fri.

The abbreviation "."cannot be omitted.

Extended data

Zhou was called the Seven Obsidian in ancient China. Japan Obsidian Day is Sunday, Month Obsidian Day is Monday, Fire Obsidian Day is Tuesday, Water Obsidian Day is Wednesday, Obsidian Day is Thursday, Jin Obsidian Day is Friday and Earth Obsidian Day is Saturday. During the Xia, Shang and Zhou Dynasties in China, Seven Obsidian refers to seven main stars, such as the sun, the moon and the five major planets, which was an important part of astronomical astrology at that time. Later, one week was borrowed as a unit of seven days, so it was called a week. Week, also called week, is a unit of time, and it is also the basis for formulating working days and rest days now.

References:

Baidu encyclopedia-Zhou