* Breastfeeding: Every 1-3 hours
* Formula: Every 2-4 hours
2-6 months
* Breastfeeding: Every 2-4 hours
* Formula: Every 3-4 hours
6-9 months
* Breastfeeding: Every 3-5 hours
* Formula: Every 4-6 hours
9-12 months
* Breastfeeding: Every 4-6 hours
* Formula: Every 4-8 hours
12-18 months
* Breastfeeding: Every 4-8 hours
* Formula: Every 4-8 hours
18-24 months
* Breastfeeding: Once or twice a day
* Formula: Twice a day