The phrase "clocked in" is often used to describe the act of starting work or registering your arrival at an establishment. There are a number of antonyms for this phrase, including "clocked out," which refers to ending work or leaving the establishment. Another antonym is "absent," which means you did not show up for work at all. "Late" could also be considered an antonym, as it refers to arriving after the designated start time. Finally, "on break" could be considered an antonym, as it refers to taking time away from work to rest or eat. These antonyms provide a range of options for describing your work status.