"Off the clock" is a commonly used phrase that refers to being free from work or duty. However, there are several synonyms that can be used interchangeably to express the same idea. One alternative phrase is "off duty", which implies the absence of any obligations related to one's job. Similarly, "not on the job" suggests that an individual is not actively working during that time. Additionally, "not working" is a simple and straightforward synonym that conveys being exempt from job-related tasks. Other phrases such as "off work" or "after work hours" effectively communicate the notion of being outside of working hours and no longer engaged in professional responsibilities.