PT Nanny For 2 Boys - Full-time / Part-time

We have 2 boys, ages 4 years and 3 years old. I work 6 a.m. - 6 p.m. and my husband works currently on 2nd shift from 2:30 pm-11 p.m. Looking for options for a PT nanny from 2-7:30 p.m. The end time is variable depending if I get off on time. The days would rotate from M, T, F one week to W, Th the next and back and forth starting March 2016. They love outside, games, and reading. We have 2 cats as well. Light cooking required and own vehicle required. We may in the near future need a nanny to work mornings from 5:15 am-2:30 p.m. if my husband gets moved to first shift. This may occur by April 2016. Thank you!