A lunisolar calendar system, based on both lunar cycles and the solar year, is often associated with ancient Israelite timekeeping. Each month begins with the new moon, resulting in a year of twelve or thirteen lunar months, depending on the need to align with the agricultural seasons. Some interpretations of scriptural references to festivals and agricultural cycles suggest a thirteen-month year was sometimes used to maintain this alignment.
Maintaining alignment between lunar cycles and solar years is crucial for accurately observing agriculturally significant events and festivals tied to specific seasons. This synchronization is essential for cultures relying on predictable seasonal changes for planting and harvesting. Historically, variations in calendar systems reflected the practical needs of different communities and their relationship with the land. Such systems provided a framework for religious observances, social organization, and agricultural practices.
