in my country school starts in september , but ends diffrently 

primary school in june 

middle school and high school in mai 

university june 

studying time , from 8:00 am to 12 pm ; then from1 pm to 4 pm 

that's for primary and middle and high school but in my highschool we used to study from 8:00 am to 3:30 pm 

for me in medical school we study from 8:00 am to 1 pm 

but i don't know about other universities 

I'm from the Philippines and in my country, from preschool to highschool it's from June to March the following year. Half of December is Christmas break and April to May, summer break. It's different in my university tho. We start in July and end in April the next year. NowI'm living in Singapore and working as a preschool teacher in a childcare. The school year is from January to December! With June and December as school holidays (but they still can go to school) so it's really really tiring! 

How much time children are studying! :)