Calendar Systems & Timekeeping
Lunar Calendar
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<holidayfyi-glossary slug="lunar-calendar"></holidayfyi-glossary>A calendar system based on the cycles of the moon's phases, with each month beginning at the new moon. Pure lunar calendars (like the Islamic calendar) have 354-355 days per year, while lunisolar calendars (like the Chinese and Hebrew calendars) add intercalary months to stay synchronized with the solar year and agricultural seasons.