It is often asked, what is the difference between a daycare and a preschool? Many folks have opinions on the difference:
play time verses learning time, hours of stay, volunteer opportunities, lessons planned, toys etc.
However images and expectations are often different from what the actual legal definition is. Take for example childcare in Utah. A preschool doesn't have to face daycare inspections as long as children are not there more than 4 hours a day. So the definition there is 4 hours. You can have children there longer than that, but a new group needs to come after 4 hours.
The actual definition is more complicated than this, but it is easy to see that our assumptions and perceptions about what defines a daycare or preschool can be vastly different than the legal guidelines actually used.