naps, and bed times

Jasmine

my daughter is 9 months old. we have a weird sleep schedule so she can see her dad more often, who is on second shift. But lately she's been staying up more than usual. She normally takes a half hour to an hour nap about 2 hours after we wake up in the afternoon. (wake up is around 1030-1) then another nap between 4 and 8 which lasts between a half hour to a couple hours. right now it's 1am and she's not wanting to go to bed at all. how do I get her on a normal sleep schedule. I hate leaving her cry for so long, but I'm not sure what else to do