My wife and I are looking for occasional care for our 3-year-old daughter. We both work remotely part of the time and at the office part of the time. Sometimes one of us will be working at home while you watch our daughter.
We are looking for someone to play with and entertain our daughter. She might need a snack, and if you're watching her over lunch time, you'll need to feed her lunch.
The times that we need help vary a good bit from week to week. But we will never need help on the weekends or in the evenings.

Often, on a day that we need help, we'll only need help for 3-5 hours.