Business Trip Or Not?

Riddle: A cowboy went on a business trip on Monday. He was supposed to come back on Wednesday but he came back on Monday. How is this possible?

Answer: His horse's name was Monday!

Source: https://www.riddles.com/index.php/9071

A cowboy went on a business trip on Monday. He was supposed to come back on Wednesday but he came back on Monday. How is this possible? — Business trip or not? by Chloe Lee v1.

Riddle: A cowboy went on a business trip on Monday. He was supposed to come back on Wednesday but he came back on Monday. How is this possible? Answer: His horse's name was Monday! — by Chloe Lee v2.