Sleep through the night

Amanda 🐼 • With my husband for 25 years, married 15 💍 Postpartum/Newborn RN 💉 Addison Sarah born 1/1/16 🎀 Skylar Melina born 12/2/23 🩷
When is it ok for baby to sleep through the night. Right now we are still waking her up to feed every 3 hours at 12 days old. We know skipping feeding is not good right now, but when is it ok for baby to go several hours without a feeding?