When Does Hanukkah Start On The Jewish Calendar?

Hanukkah, or the Festival of Lights is an important Jewish celebration that occurs over two days on the 25th day of the Jewish month of Kislev. It symbolizes the miracle of obtaining enough oil to keep the menorah burning for eight days when the Jews returned to the Jerusalem temple in the second century BCE. Every year, in the Jewish calendar, Hanukkah marks a time of remembrance and joy.

Hanukkah usually starts on the 25th day of Kislev, which is the month right after the month of Tishrei. In the Hebrew calendar, Kislev is the ninth month and it has 29 or 30 days depending on the year, and usually lasts between November to December. To figure out which month it is in the Gregorian calendar, one must use a Jewish calendar.

The calculation of when Hanukkah begins is based on a Jewish Lunisolar calendar, which is a combination of solar and lunar calculations. The lunar phases are used to calculate the moment of the new moon and sidereal month, while the solar cycle is used to regulate when leap years are added to the calendar.

What is a Jewish Lunisolar Calendar?

A Jewish Lunisolar Calendar is based on the cycle of the moon, but also takes into account the position of the sun. It matches the Jewish year with the Gregorian year, ensuring that Jewish holidays always fall on the same date each year. There are two main components to the Lunisolar Calendar: the Kesidra, which is the core of the lunar months, and the Shmuz, which is the core of the solar year.

How is the Jewish Lunisolar Calendar Used to Calculate Hanukkah?

Hanukkah is the start of Kislev month and the 25th day begins the festival. By counting back from the 25th day of Kislev, the start of Hanukkah can be determined. In the Lunisolar Calendar, days of the month are determined by the position of the moon. When the new moon appears, it marks the start of a new month.

Calculating Hanukkah on the Jewish Calendar

In order to determine the date of Hanukkah, the date of the new moon must be known. To calculate the date of the new moon, two Moons must be observed an exact interval after each other. This interval is known as the Metonic Cycle, and it is performed seven times before a new moon can be predicted. Once the date of the new moon is known, it marks the start of Kislev and the start of Hanukkah.

Conclusion

Hanukkah is a joyous occasion celebrated by Jews all over the world. It is an important holiday to bring joy and light to lighten the darkness of winter. To find out when Hanukkah begins, one must know the date of the new moon and use the Lunisolar Calendar to calculate the start of the Jewish month of Kislev. This marks the start of Hanukkah and marks the beginning of the Festival of Lights.

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Last update 2023-11-27. Price and product availability may change.