The lunisolar calendar is a sophisticated system that integrates the cycles of both the moon and the sun to mark the passage of time. Ancient texts such as the Book of Enoch provide valuable insights into how the moon’s phases diminish and reappear in fixed cycles, detailing months of either twenty-nine or thirty days. This aligns with the concept of a lunisolar calendar, where months are based on lunar phases, but the year is adjusted to align with the solar cycle to keep seasons consistent. Moreover, the Dead Sea Scrolls emphasize the sacred nature of timekeeping and calendar systems to ancient priestly communities. Time was considered divine, measured with precision to regulate religious festivals and agricultural activities. Unlike the common population, whose perception of time was seasonal or weather-dependent, priests and astronomers used celestial observations to maintain a calendar that guided communal and spiritual life. The lunisolar calendar discussed here differs from purely lunar or solar calendars by incorporating both celestial bodies’ cycles. This dual system allowed ancient societies to maintain harmony between the lunar months and the solar year, thus preventing drift of important seasonal festivals such as Passover or Easter. The lunar disappearance and reappearance phases described in the Book of Enoch reflect this precise awareness and calculation. Understanding the lunisolar creation calendar involves recognizing the significance of celestial ordinances, as noted in chapter excerpts where the complete cycles of moonlight reduction and replenishment are linked to cosmic gates and periods. The synchronization of these gates with weeks and months reveals an ancient method of time reckoning that balances lunar variability with the solar year to maintain religious and agricultural order. In summary, the lunisolar calendar represents a profound combination of astronomy, theology, and culture. It reflects the effort of ancient communities to comprehend the heavens and imbue timekeeping with sacred importance. Modern readers can appreciate how these early calendars helped synchronize celestial phenomena with earthly events, ensuring continuity of tradition and seasonal harmony across generations.