It depends. When I do merchandising work such as resets, it's usually 6-8 hours with a few breaks and lunch. I prefer to work without breaks myself. There is such a thing as night resets but I generally won't do them unless they pay extra. I don't like electronic store resets and remodels, but again, I will do them on occasion. I haven't done a lot of reset work lately. A few weeks ago we completed resets in the frozen food sections at some health food stores. We started at 7 a.m. and were done by 1 p.m. each day. It was a 3-day job at different stores in my area for the same chain. I probably won't do anymore reset work until spring, when one of my favorite local grocery stores will undoubtedly have some resets and remodels. I really like it when they build new stores and I get to go in and design departments. I get to be very creative with that kind of work and direct a team on how I want things to be done after getting approval from the store manager, and then a great sense of satisfaction when I go back and shop there and see what a great job we did.
I am involved in a project with the company that pays me mileage, drive time, and administrative time in addition to the regular hourly fee doing audits every quarter for a well-known food, health and beauty manufacturer. It's super easy. I pick a store close to home and go there, open an app, and scan items using my smart phone, entering the date code and taking a photo of it, and documenting any defects with pics (pump lock tops open on hand lotion bottles, drips or leaks, expired food products, air bubbles in the mayo, etc.). I never actually have to interact with store employees while doing them, I just do my thing and after 2 hours (usually 60-70 items) I submit the work on the app and leave. I do 7 stores per quarter (2 grocery stores, 2 mass retailers, 3 drug store retailers) and bill for it when done. I love that project.
I would never touch a Best Buy audit. They just don't pay enough.