Nisan is the first month of the Hebrew calendar, and it corresponds to March or April in the Gregorian calendar.

A regular Hebrew year has 354 days, which is 11 days shorter than a solar year.

Adar is the extra month that is added to the Hebrew calendar every few years to keep it in sync with the solar year.

A leap year in the Hebrew calendar has 384 days, which is 11 days longer than a regular year.

Rosh Hashanah is the Jewish New Year, and it is celebrated on the first and second days of the month of Tishrei.

Yom Kippur is the Jewish Day of Atonement, and it is celebrated on the tenth day of the month of Tishrei.

Hanukkah is the Jewish festival of lights, and it is celebrated for eight days and nights in the month of Kislev.

Pesach is the Jewish festival of Passover, and it is celebrated for eight days and nights in the month of Nisan.

Shavuot is the Jewish festival of Shavuot, and it is celebrated on the sixth and seventh days of the month of Sivan.

Sukkot is the Jewish festival of Sukkot, and it is celebrated for eight days and nights in the month of Tishrei.

A Jewish century consists of 103 years, which is 19 solar years.

The Hebrew calendar cycle is a 19-year cycle that is used to determine the dates of religious holidays and observances.

The Anno Mundi era is the Jewish calendar era, and it begins with the creation of the world.

The current year in the Hebrew calendar is 5783, which corresponds to 2023 in the Gregorian calendar.

The next Jewish leap year is 5785, which corresponds to 2025 in the Gregorian calendar.