Aug 4, 2026Discover how long 12 lunar months last and their significance in Islamic, Chinese, and Jewish calendars.

Aug 2, 2026Learn about the missing 13th month called Undecimber and its role in alternative calendar systems like the International Fixed Calendar.

Jul 21, 2026Learn what the 7 digit Julian date is and how it represents a year and day count in an easy-to-understand format.

Jul 19, 2026Discover why Ethiopia's unique calendar is 7 to 8 years behind the Gregorian calendar and how its 13-month system works.

Jul 17, 2026Discover why some years contain 53 weeks and how calendar systems determine the number of weeks in a year.

Jun 16, 2026Explore the 235 lunar months Metonic cycle, a 19-year period when moon phases repeat on the same days of the year, used in ancient calendars.

May 25, 2026Explore the history of the 13-month International Fixed Calendar used by Eastman Kodak and its unique design with 28-day months.

May 22, 2026Discover if a year has 13 lunar months and understand the differences between lunar and solar calendars in this concise explanation.

May 18, 2026Discover why Ethiopia’s calendar shows 2014 while the rest of the world uses the Gregorian calendar in 2021. Learn about Ethiopia’s unique calendar system.

Apr 8, 2026Discover why a year with 354 days is called a lunar year and how it fits into the Islamic Hijri calendar’s lunar cycle.

Mar 28, 2026Discover why the world uses a 12-month calendar instead of 13 months, focusing on practical, agricultural, and historical reasons.

Mar 14, 2026Discover the truth about the Chinese calendar and its lunisolar system. Learn why it's commonly believed the Chinese have 13 months!

Mar 6, 2026Learn about historical calendars with 13 months, like the Ethiopian calendar, and how cultural perceptions of time vary.

Jan 25, 2026Explore why the 12-month Gregorian calendar prevails and the implications of a 13-month system.

Dec 12, 2025Learn how Japan labels dates using Western and Japanese era systems. Essential for accurate documentation!

May 10, 2025Discover why November has 30 days, tracing back to the Roman Calendar and its fascinating history.