👉 The word "01 003" is a phrase used to denote something that has occurred for one hour. In simple terms, if you have done something for an hour, "01 003" means you have completed this activity at the end of the hour.
Example sentence: "I did my homework for an hour today." In this example, saying "I did my homework for an hour today" is a humorous way to convey that someone has been spending one entire day doing something.