When someone works late, it means that they are working beyond the regular hours of their job. There are several synonyms for this phrase, such as burning the midnight oil, staying after hours, pulling an all-nighter, working overtime, and working beyond the clock. Other phrases might include working into the wee hours, staying on the job till midnight, or logging extra hours at work. Regardless of the phrasing, working late can be a sign of dedication and diligence, but it can also suggest that there is an imbalance between one's work and personal life. Ultimately, finding a healthy balance is essential for long-term success and happiness.