clock problem

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Clock problem to identified angle between hour and minute.
There are 12 parts in hour hand and 60 parts in minite hands.
Hour angle find using (12/360)*hours
minute angle find using(60/360)*minite
angle= minute angle-hour angle

Calender how to solve?

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There 2 type of year
ordinary
leap
Leap year have 52 week and 2 odd day
Ordinary have 52 week and 1 odd day

Every 100 year have 5 odd days
Every 200 year have 3 odd days
Every 300 year have 1 odd days
Every 400 year have 0 odd days
other year 800,1200,1600,2000 have 0 odd day