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Jewish Calendar & Candle Lighting Times Dynamic Jewish Calendar For Jewish Feasts & Jewish Holidays
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The date of Jewish holidays does not change from year to year. Holidays are celebrated on the same day of the Jewish calendar most every year, but the Jewish year is not the same length as a solar year on the Gregorian calendar used by many of the western world, so the date shifts on the Gregorian calendar. Bookmark and use our current Jewish Holiday Calendar above to view accurately all Jewish holidays and times for candlelighting and Motzei Shabbat weekly.
Background and History
The Jewish calendar is rooted on three top notch phenomena: the rotation of the Earth about its axis (a day); the revolution of the moon close to the Earth (a month); and the revolution of the Earth about the sun (a year). These three phenomena are independent of each other, so there is no direct correlation between them. On average, the moon revolves around the Earth in just about 29� days. The Earth revolves around the sun in about 365� days, that is, virtually 12.4 lunar months.
The Gregorian calendar used up by several of the world has abandoned any correlation between the moon cycles and the month, arbitrarily setting the total amount of months to 28, 30 or 31 days.
The Jewish calendar, however, coordinates all 3 of these kinds of astronomical phenomena. Months are either 29 or 30 days, corresponding to the 29�-day lunar cycle. Years are either 12 or 13 months, corresponding to the 12.4 period solar cycle.
The lunar month on the Jewish calendar begins when the beforehand sliver of moon becomes visible subsequent to the dark of the moon. In ancient times, the new cycles used to be determined by observation. When people observed the new moon, they would notify the Sanhedrin. When the Sanhedrin heard testimony from two independent, reliable eyewitnesses that the new moon occurred on a certain date, they would declare the rosh chodesh (first of the month) and send out messengers to say to people when the month began.
The challenges amidst strictly lunar calendars is that there are approximately 12.4 lunar months in every solar year, so a 12-month lunar calendar loses about 11 days most any year and a 13-month lunar gains virtually 19 days most every year. The months on such a calendar "drift" relative to the solar year. On a 12 lunar month calendar, the period of Nissan, that is supposed to occur in the Spring, would arise 11 days earlier each year, eventually happening in the Winter, the Fall, the Summer, and when that happens the Spring again. To compensate for this moment drift, an extra month was occasionally added. The period of Nissan would occur 11 days earlier for two or three years, and then would jump forward 29 or 30 days, balancing out the drift. In ancient times, this month was also added by observation: the Sanhedrin seen the circumstances of the weather, the crops and the livestock, and if these were not sufficiently advanced to be considered "spring," then the Sanhedrin inserted an additional period to the calendar to make sure so Pesach (Passover) can occur in the spring (it is, once all, referred to in the Torah as Chag he-Aviv, the Festival of Spring!).
A year with 13 cycles is referred to in Hebrew as Shanah Me'uberet (pronounced shah-NAH meh-oo-BEH-reht), literally: a pregnant year. In English, we commonly call it a leap year. The additional month is famous as Adar I, Adar Rishon or Adar Alef. It is inserted before the regular month of Adar (known in such ages as Adar II, Adar Sheini or Adar Beit). Note the current Adar II is the "real" Adar, the one in which Purim is celebrated, the one in which yahrzeits for Adar are observed, the one in which a 13-year-old born in Adar gets a Bar Mitzvah . Adar I is the "extra" Adar.
In the fourth century, Hillel II established a fixed calendar based on mathematical and astronomical calculations. This calendar, still in use, standardized the total amount of cycles and the addition of months over the course of a 19 year cycle, so that the lunar calendar realigns with the solar years. Adar I is added in the 3rd, 6th, 8th, 11th, 14th, 17th and 19th years of the cycle. The up to date time set about in Jewish year 5758 (the year that began October 2, 1997). If you are musically inclined, you may find it helpful to remember their pattern of leap years by reference to the rule scale: for each massive step there are two gradual years and a leap year; for each half-step there is one regular year and a leap year. This is simpler to understand when you examine the keyboard illustration below and see how it relates to the leap years above.
In addition, Yom Kippur should not slow down adjacent to Shabbat, because this would rationale difficulties in coordinating the quickly with Shabbat, and Hoshanah Rabbah should not fall on Saturday when it would interfere with the holiday's observances. A day is added to the month of Cheshvan or subtracted from the month of Kislev of the previous year to prevent these kinds of conditions based on happening. This course is sometimes referred to as "fixing" Rosh Hashanah.
Numbering of Jewish Years
The year number on the Jewish calendar represents the large amount of of ages as of creation, calculated by adding up the ages of people in the Bible back to the time of creation. However, this does not necessarily hint that the universe has existed for merely 5700 years as we appreciate years. Many Orthodox Jews ought to readily acknowledge that the mainly six "days" of generation are not necessarily 24-hour days (indeed, a 24-hour day would be meaningless until the creation of the sun on the fourth "day"). For a fascinating (albeit somewhat defensive) projection by a nuclear physicist showing how Einstein's Theory of Relativity sheds light on the correspondence between the Torah's age of the world and the age ascertained by science, see The Age of the Universe.
Jews do not normally use the words "A.D." and "B.C." to refer to the decades on the Gregorian calendar. "A.D." means "the year of our L-rd," and we do not believe Jesus is the L-rd. Instead, we use the abbreviations C.E. (Common or Christian Era) and B.C.E. (Before the Common Era), which are commonly expended by scholars today.
Months of the Jewish Year
The "first month" of the Jewish calendar is the month of Nissan, in the spring, when Passover occurs. However, the Jewish New Year is in Tishri, the seventh month, and that is when the year number is increased. This idea of distinct starting points for a year is not as strange as it might appear at original glance. The American "new year" starts in January, but the new "school year" starts in September, and numerous companies have "fiscal years" that start at the majority of times of the year. Similarly, the Jewish calendar has different begun points for unusual purposes.
The names of the months of the Jewish calendar were adopted during the time of Ezra, after the return of the Babylonian exile. The names are in reality Babylonian month names, brought going back to Israel by the returning exiles. Note the present most of the Bible refers to months by number, not by name.
The Jewish calendar has the following months:
Hebrew English Number Length Gregorian Equivalent
Nissan 1 30 days March-April
Iyar 2 29 days April-May
Sivan 3 30 days May-June
Tammuz 4 29 days June-July
Av 5 30 days July-August
Elul 6 29 days August-September
Tishri 7 30 days September-October
Cheshvan 8 29 or 30 days October-November
Kislev 9 30 or 29 days November-December
Tevet 10 29 days December-January
Shevat 11 30 days January-February
Adar I (leap ages only) 12 30 days February-March
Adar (called Adar II in leap years) 12 (13 in leap years) 29 days February-March
The duration of Cheshvan and Kislev are determined by complex calculations involving the long time of day of the full moon of the following year's Tishri and the day of the week that Tishri would happen in the coming year. After many years of blissful ignorance, I finally sat down and worked out the mathematics involved, and I have added a page on The Jewish Calendar: A Closer Look, that may be of interest to those who want a deeper bargain or who want to write a Jewish calendar computer program. For the rest of us, there are heaps of simply accessible computer programs that should calculate the Jewish calendar for more than a millennium to come. I have provided some links below.
Note that the number of days between Nissan and Tishri is always the same. Because of this, the time from what i read in the principally principle festival (Passover in Nissan) to the last major festival (Sukkot in Tishri) is always the same.
Links to Jewish Calendars
We maintain a current Jewish calendar on this website. Unlike a large amount of Jewish calendars you will see, our calendar shows the Hebrew months with the corresponding Gregorian dates.
Most printed Jewish calendars cover a 16-month period: from September of one year (to put in Rosh Hashanah to December of the following year. Be aware, however, that some substantiate simply the 12-month period based on data from September to August, and some that regard to have the full 16-month phase show merely limited hints about September to December of the latter year. They show the Gregorian months in Jewish holidays , Torah readings , candle-lighting times and so forth.
