moving back baby's bedtime

Hi ladies! Looking for tips on moving back my little girl's bedtime. She used to go to sleep at 8pm but over the last 3 weeks or so it's crept up to 5:30pm! She's a good sleeper sleeps about 10-11 hours but the 4am wake up is just a bit too early for mama!! Anyone successfully move back bedtime?? She'll take about 3 one hour naps a day. I'm wondering if she napped longer shed move back bedtime. Trying to get her to do that seems impossible though 😱💤💤💤