On what date does February, 1967 did first Sunday fall?

Calendar problems on: Calendar concepts, including odd days, dates, years, and days of the week. Here are some formulas for solving calendar-related questions: Ordinary year: 1 ordinary year has 365 days, or 52 weeks and 1 day. An ordinary year has 1 odd day. Leap year: 1 leap year has 366 days, or 52 weeks and 2 days. A leap year has 2 odd days. Odd days: The number of odd days in a non-leap year is 1, because 365 mod 7 = 1. The number of odd days in a leap year is 2, because 366 mod 7 = 2.  You can also use odd days to find days from dates. For example, 76 ordinary years have 76 odd... Show more

Calendar problems on: Calendar concepts, including odd days, dates, years, and days of the week.

Here are some formulas for solving calendar-related questions:
Ordinary year: 1 ordinary year has 365 days, or 52 weeks and 1 day. An ordinary year has 1 odd day.
Leap year: 1 leap year has 366 days, or 52 weeks and 2 days. A leap year has 2 odd days.
Odd days: The number of odd days in a non-leap year is 1, because 365 mod 7 = 1. The number of odd days in a leap year is 2, because 366 mod 7 = 2. 

You can also use odd days to find days from dates. For example, 76 ordinary years have 76 odd days, and 24 leap years have 48 odd days. Adding these together gives 124 odd days. 

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