No real routine but generally every 3 hours. Unless he’s asleep then whenever he wakes.
No specific times but first bottle is around 9/9:30 and then every 3/4 hours depending on when his naps are due. His last bottle is 7:30pm and then he'll wake between 4:30 and 5:30am for a bottle and then sleeps again until around 8:30am
7am, 10am, 1pm,4pm, and last at 7pm (8oz offered but he doesn’t always finish it)