on (one's) own time

on (one's) own time

When one is not actively working at one's job; in one's free time. It's hard to pursue a degree on your own time when you're also working a full-time job.
See also: on, own, time
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

on one's own time

not while one is at work. The boss made me write the report on my own time. That's not fair. Please make your personal telephone calls on your own time.
See also: on, own, time
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

on one's own time

During non-working hours, especially when one is not being paid. For example, Marcia wrote poetry evenings and weekends, on her own time. This expression implies that the time one spends working for someone else is no longer one's possession.
See also: on, own, time
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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