The phrase "worked overtime" is commonly used to describe working beyond one's normal working hours. However, there are several synonyms that can be used to convey the same meaning. These include: working extra hours, working beyond regular hours, working extended hours, putting in extra time, working beyond the call of duty, working late, working after hours, working past normal hours, and working overtime hours. Using these synonyms can help to convey a more diverse and precise message to the reader or listener. However, it is important to note that the phrase "worked overtime" remains the most commonly used and widely understood synonym.