I have done second shift but only done third shift in an emergency. Worked well for me as at the time I had half day kindergarten that were with me for the morning but then went to school in the afternoon but didn't come back. So I had two kids that arrived at 1:00 to go down for nap with everyone else and stayed till 11:45. The advantage was there was no programming just play and doing whatever our family was doing. I had total permission to do or go wherever we wanted and a few other flexibles like oldest could take child to park along with siblings, that sort of thing.

I charged my regular full day rate plus a $10 meal fee. Child had two snacks, one meal, and 10-11 hours of care so about like a normal day but mostly they were hanging out as in I wasn't doing a lot with them and using very few supplies - ie no craft time.

I did it for a single parent. She had subsidy and a space in an agency home but they did not support odd hours care so her space there was considered part time as in 2 of 4 weeks a month and the other two weeks they were with me on second shift. She never did third shift.