Show each employer with its own accurate dates
When two roles genuinely overlapped, the resume should show two separate entries, each with its own employer, title, and month-year dates. The overlap is not an error; it is a fact the reader can check. Chron's guidance is to list concurrent part-time positions chronologically just like full-time work, letting the dates run at the same time rather than forcing them apart.
The common mistake is collapsing both jobs into one line or trimming one job's end date so the timeline looks tidy. That hides real experience and can later look like an unexplained gap or an inaccuracy during a background check. Keep the dates honest and let the reader see the overlap for what it was.
Label the work status so the overlap makes sense
A reader who sees two full-time-looking jobs in the same months may assume a typo or worry about divided attention. Adding “part-time,” “contract,” “freelance,” “seasonal,” or “temporary” beside the title clears that up at a glance. Indeed's guidance for a part-time second job is to tailor the resume to that specific role instead of sending a full-length version built for a different career.
Keep the entries in reverse-chronological order and use one consistent month-year format throughout. If one role is clearly more relevant to the job you want, give it fuller bullets and keep the other to a line or two, rather than giving equal weight to work that does not support this application.
Explain the overlap once, briefly
The resume itself does not need a paragraph about why you held two jobs. If the overlap invites a question, one short line in a cover letter can settle it: you were building a business while employed, covering a leave, or scheduling around school. Chron recommends using the cover letter for this kind of context and framing it positively and factually.
When you are applying for another part-time or second job, state your availability plainly. An employer hiring for a second role needs to know the hours you can actually work, so put scheduling information where it is easy to find. Do not imply open availability you cannot offer; a clear, reliable schedule is more persuasive than a vague one.
Sources consulted
This guide is an original synthesis of the following career guidance. Read the source material for its full context.