I didn't see the response time when I looked up IN--60 days is good for you, more delay.
I was assuming 24 hrs for Fridays and 48 hrs for weekends, so my numbers were lower. But all of those extra hours are sleeping times--again, you are her overnight babysitter.
I know you work days M-F and she works nights and weekends right now, so the schedule is very practical for avoiding daycare. What about in a few years when both girls are in school all day? Will that be the schedule you want to stick with for the next 16 years??
Whatever schedule you agree to, make sure it is stated specifically by the hour, i.e.: every Thursday from 6pm to Saturday 8am. --btw, do you get Fridays off? or is this just a way for her to get her needed shifts in while you pay for daycare?
Even if you think this is fair, I'd suggest you ask for a 50/50 split, with some default timing (even week on/week off) that maybe doesn't work right now, but would be ok once the girls are both in school. That is, her plan for the next 3 years, then default to a standard schedule unless you mutually agree to something else at the time.
If nothing else, this will give you something to discuss while you are stalling for time.
