What is the difference between long day care and sessional kindergarten (preschool)?

Long day care provides part time or full time (1 – 5 days per week) care and education for children 0—6 years usually for the purpose of parents working or studying.
Sessional kindergarten, also known as preschool, provides sessional care and education programs for 3 and 4 year old children. Eligible 4 year old children attend 11 hours per week; 3 year old children attend 6 hours per week.