My DD is nearly 4 weeks.
From about 2weeks on we have tried, and not always managed, the following:
DP and I have dinner around 5pm and from there onwards it's "stay awake time" with quiet activities like tummy time. Normally done by DP so he can spend time with her after work.
DD has a bottle around 6pm
We then try to have her in the bath/washed for 7:30pm and into PJs for 8pm.
DD then has bottle around 8:30pm which we do in a dimmed light area with no TV etc. A little time after for cuddles.
She is in bed around 9pm but mostly lies and watches her light projector. This is self soothing time.
Next bottle is 10:30pm and she is cuddled, swaddled and laid down for the night. DP and I normally closely follow so the room is completely dark and quiet.
She usually wakes around 12:30-1am, 3-4am, 5:30-6:30am then up at 9:30am*.In these times she is picked up, fed half her bottle, changed and cuddled/burped, given the rest of the bottle, swaddled and kissed then it's back to bed with her night light OR light projector depending on how awake she seems. Once 9:30 hits I make sure to get her up, open the curtains and get some noise going and talk to her while feeding/changing then it's clothes time and into the living room for the day.
*she recently started missing out the 12:30-1:30am feed by herself and will sleep through this. We started giving her water throughout the day with her feeds and offering a extra oz of feed at 8:30 and 10:30
She naps in the living room throughout the day without much routine but does have a area where she goes when she gets sleepy.