Tuesday, abbreviated form: Tuesday.

Wednesday: Wednesday, abbreviated as Wed.

Thursday, abbreviation: Thur. /Thursday.

Friday, abbreviation: Fri.

Saturday, abbreviation: Sat.

7.Sunday: Sunday, abbreviated as Sun.

Extended data:

Zhou originated in Babylon as a time period. The world week system was formally established by the Roman emperor Constantine the Great on March 7th, 32 1 year.

China called it Seven Obsidian in ancient times. 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 is an important part of astronomical astrology at that time, but it does not mean the time period. Later, one week was borrowed as a unit of seven days, so it was called a week.