Aug 17, 2026Learn why the probability of November having 5 Sundays is 1 in 7, based on calendar cycles and month starting days.

Aug 16, 2026Learn the probability that a leap year contains 53 Saturdays and Sundays and understand how the year's start day affects this calculation.

Aug 8, 2026Learn the probability of having 53 Fridays or 53 Saturdays during a leap year and understand how the extra days affect the calendar.

Jul 31, 2026Learn how to calculate the probability of having 5 Sundays in April and understand the calendar conditions that make it possible.

Jul 29, 2026Learn why the chance of getting 5 Sundays in January is 11.1%, based on the day January 1st falls each year.

Jun 25, 2026Learn how often December contains 5 Sundays and what calendar conditions cause this occurrence.

Jun 24, 2026Learn why January has a 1 in 7 chance of containing 5 Sundays based on the month's start day and length.

Mar 20, 2026Learn how to calculate the day of the week for any date using Zeller's Congruence algorithm effectively.

Mar 9, 2026Learn how to calculate the probability of having 5 Sundays in October based on calendar years.

Oct 15, 2025Learn how to calculate the day number for any date, focusing on April 8th as the 98th day of the year.

Sep 30, 2025Learn how many weeks are in a year, including leap years, and why it varies. Discover the math behind week calculations!