# How is the Jewish calendar different from the Gregorian calendar?

## Question:

How is the Jewish calendar different from the Gregorian calendar?

## The Gregorian Calendar:

The Gregorian calendar evolved out of prior calendars such as the Julian calendar. In many ways, the Gregorian calendar is a continuation of the Julian calendar. However, it has a more complex method for determining leap years.

The Jewish calendar, also known as the Hebrew calendar, is a lunisolar calendar which combines elements of the lunar cycles with the solar cycle. The Hebrew calendar is largely based on 12 phases of the Moon. The Gregorian calendar, on the other hand, is a solar calendar. The Gregorian calendar is an effort to simulate the solar year. Whereas the solar year is 365.2422 days long, the Gregorian year is 365.2425 days long. The Hebrew calendar year is 355 days long.

Origins of the Julian & Gregorian Calendars

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Chapter 22 / Lesson 15
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Find out who invented the calendar. Analyze the key differences between the Julian vs Gregorian Calendar systems and how these calendars influence modern calendars.