• Key Information

  • Lunar Calendar

  • Type
    Calendar
  • Type of Calendar
    Lunisolar (often called Lunar)
  • Amount of Days
    About 354 (or About 384/5 in years with a 13th month)
  • Learning Point
  • The Hebrew Calendar is often called a lunar calendar, though it really is a lunisolar calendar as there are adjustments made to keep it in time with the solar year.
  • The Hebrews added an extra month seven times out of 19 years, allowing the year to catch up with the solar year. This is what is used to calculate the Memorial commemoration every year.
  • Project
  • Create a chart based on the B15 Appendix in the New World Translation.
  • Memorial - 2023
  • Memorial - 2023
  • Media
  • Location
  • Located in
    Jerusalem, Israel
  • Fun Facts
  • The calculations of the precise day we should use for the Memorial are calculated from the sunset in Jerusalem, which we then use to calculate for the rest of the world.
  • The Hebrew Calendar we use is the one Jesus would have used, not the more modern Jewish version, which has slight adjustments that can adjust things out by a day.
  • Lunisolar calendars used months based around the phases of the moon, but then have additional days or months to allow catching up with the solar year, as the solar year is about 11 days longer than 12 lunar months.
  • Nisan was the first month of the religious calendar used by the Israelites, with the first day of each month being calculated from the new moon (when the moon can't be seen).