星空有约｜公历2026年比农历丙午马年多11天

Core Viewpoint - The difference in the length of the Gregorian calendar year and the lunar calendar year is due to their reliance on different celestial cycles for their respective calendar systems [3][5][7]. Group 1: Gregorian Calendar - The Gregorian calendar is based on the solar cycle, with a year length of approximately 365.2422 days, leading to the establishment of regular years (365 days) and leap years (366 days) [3][6]. - The rules for leap years in the Gregorian calendar are "one leap year every four years, no leap year in a century, and a leap year every four centuries" [3]. Group 2: Lunar Calendar - The lunar calendar, or traditional Chinese calendar, is a lunisolar calendar that considers both the lunar phases and the solar year, with an average year length of about 354 days [5][6]. - To reconcile the difference between the lunar year and the solar year, the lunar calendar includes intercalary months, with approximately seven leap years occurring every 19 years, resulting in a leap year length of about 384 days [5].