6 daily hours
8 hours on mondays
From 8.00 to 13.00
or
from 11.00 to 16.00
From 8:30 to 14.20
(in my school / generally)
8:00-12:30 // 13:00-17:00
From 8:55 to 14:35
From 16:00 to 17:50 on mondays.