Lunar Month Calculation
How to Calculate a Lunar Month: Understanding the Synodic Month

Learn how to calculate a lunar month using the synodic period of approximately 29.53 days with lunar phases and calendars.

Lunar Year 12/13
Are There 13 Months in a Lunar Year? Explaining Lunar Calendars

Discover why some lunar years have 12 months and others 13, and how lunar calendars align with the solar year.