Aug 5, 2026Can a year have 364 days? Learn how lunar calendars and calendar reform proposals differ from the Gregorian calendar's 365-day year.

Jul 5, 2026Discover why not every year has 365 days and how leap years keep our calendar aligned with Earth's orbit.

Jun 19, 2026Discover why months have 30 or 31 days and why February has 28 or 29 days, balancing the calendar with Earth's orbit and lunar cycles.

Mar 25, 2026Learn how to calculate the days in a calendar year, including how to identify leap years using divisibility rules.