how long does it take to study diploma early childhood
1 A certificate 3 in Children's Service's can be completed in as little as a few weeks plus a minimum of 120 hours of practical experience. 2  A Diploma in Children's Services can be completed in as little as 12 - 18 months and can be completed on saturdays.hy you'll want to study your Certificate 3 or Diploma in Children's Services. In order to work in the Early Childhood Sector or Out of School Hours Care you'll need to complete a Certificate 3 in Children's Services or higher.