CALENDAR notes

• Calendar repeats after every 400 years.
• Leap year- it is always divisible by 4, but century years are not leap years unless they are divisible by 400.
• Century has 5 odd days and leap century has 6 odd days.
• In a normal year 1st January and 2nd July and 1st October fall on the same day. In a leap year 1st January 1st July and 30th September fall on the same day.
• January 1, 1901 was a Tuesday.