Delhi University has many colleges, and each college has its own schedule, but some of the things are consistent. It also depends on whether you were admitted to a morning or evening college.
The timings of morning colleges are - 8:30, 9:00, 9:30, and 10:00 AM
They usually end at - 12:30, 1:00, 1:30, 2:00, 2:30, 3:00, 3:30 PM.
It entirely depends on the scheduled college timing of each course. Some practical classes go on till 5 in the evening, as well. Timing is longer in colleges that only offer morning classes and do not offer evening classes.
Evening college classes begin at 1:00 PM, 1:30 PM, or 2:00 PM till 7.30 - 40 PM in the evening.
However, Saturday is unpredictable as few semesters conduct classes on Saturdays, as well and in some semesters, there are no classes on Saturdays.