Advice on Adjusting Schedule

My little guy is 8 weeks old this week and I have to go back to work in two weeks. I want to start adjusting his sleep schedule so that he goes to bed earlier cause momma needs to go to bed earlier. Right now he is sleeping from about 11 pm to 4 am and 5 am to about 8 am. I need him to fall asleep a couple hours earlier and I’m just not sure how to start making him adjust. Any advice for this first time mom would be much appreciated. He gets swaddled at night and eats for a long time usually before going down for the evening.