Every child has their own individual sleeping and eating pattern and demands. Newborn babies in particular have no concept of daytime or nighttime for the first few weeks. The baby is simply not used to not getting food for a longer period of time. In the womb the baby was “fed” around the clock. Therefore, be prepared for many “duty calls” at night in the first few weeks.
Pump off breast milk in the evening and keep it in the fridge (well sealed at +4°C to +6°C for a maximum of 2 days).
At the age of three months your baby will be able to handle longer periods of time between meals and will therefore sleep longer in the night instead of during the day. From the second 6 months, children no longer need food at night because at this age the hunger and fullness rhythm of a healthy child will entirely shift to daytime.