Bed Time For 4 Months Old Going To Infant Care

Hi Mummies with baby going to infant care, can share your routine for a 4 month baby going to infant care? Like the timings for feeding and bedtime? Is it true baby have to be in bed by 7 to 8 pm? Cause I can only pick up my son at 7 pm.. If he sleeps soon after I bring him home seems there is no time for bonding.. How do u working Mummies manage? Can share?