Questions tagged [calendar]

Questions about calendars. The Jewish calendar is a lunisolar calendar that determines the dates of Jewish festivals.

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What is the significance of the fact that every month that has a Biblical holiday in it is a 30-day month?

Rosh HaShanah, Yom Kippur, and Sukkos are all in Tishrei, which has 30 days. Pesach is in Nissan, which has 30 days. Shavuos is in Sivan, which has 30 days. What is the significance of this fact,...
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Why announce Mashiv Haruach and not Vtein Tal?

When we start saying mashiv haruach there is an important requirement of announcing the liturgical change. If one does not hear the announcement, one does not say mashiv until the community would have ...
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80 views

Why is Pesach sheni one month after Pesach rishon?

Bamidbar 9:11 tells us that Pesach sheni happens a month after Pesach rishon. Pesach sheni was for the unclean or people on a long journey, who couldn't bring Pesach at its appointed time. Did they ...
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5 Iyar vs. 10 Adar

In Jewish tradition, we generally commemorate the ends of wars rather than their beginnings (e.g./i.e. Chanuka, Purim). The commemoration of the rebirth of Israel as the Jewish homeland in the past ...
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What if two communities had two different Shabbat days?

Imagine this: One community, A, keeps Shabbat on what we identify as Saturday. However, another community, B, for whatever reason, actually keeps Shabbat on what we identify as Sunday. These two ...
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Cutting nails before Yom Tov

BSD I know that it says in Shulchan Aruch one shouldn't cut one's nails on Thursday (really two days before Shabbat) in deference to the Shabbos. Does this apply to Yom Tov as well? Meaning, should ...
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79 views

Yakkov living in Egypt 17 years - connection to 210 years of servitude

Parshas Vayechi starts off that Yaakov lived in Egypt for 17 years. I was thinking that 17 years x 12 months = 204 months. Usually in 17 years there are 6 leap years which would increase the total ...
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249 views

What will happen when our set calendar ends?

In a recent conversation I was told that the current Jewish calendar was only set till the year 6,000. There was conjecture as to what will happen after that time (assuming Moshiach has not yet ...
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For how long was there confusion about the date of a holiday?

The second day of Yom Tov outside of Israel was caused either by the length of time it took messengers to get to far away communities and tell them when the new month was declared or the confusion ...
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Why are agricultural requests based on holiday timing?

There are a few changes to the amida which reflect the changes in the seasons -- we add (or change to) mashiv haru'ach umorid hagashem (or geshem) at Shmini Atzeret (and back at Pesach) and switch TO ...
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Does the proclamation of the New Moon by Beis Din have an effect on nature?

I found in this celebratory volume, p 172 (haoros.com/download.asp?kovetzID=1086&ext=pdf) והנה הרא"ה בספר בדק הבית שלו הובא בש"ך יור"ד סי' קפ"ט סקי"ג הסכים עם קושיית הרמב"ן, ולפיכך כתב שיש ...
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Is there a reference that explains the literal meaning and etymology of the names of the Hebrew months?

Is there a reference that explains the literal meaning and etymology of the names of the Hebrew months? I am looking for something that explains both the common Babylonian names as well as the Tana"ch ...
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Shemonei Esrei regarding the seasons in Divine Might

Every time I pray the Amidah, I get very hesitant regarding what season is appropriate for me to pray. I live in the southern hemisphere in a tropical climate. Therefore, we have one season dry and ...
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What was done with the orders of the cohanim during a leap year?

In 1 Chronicles chapter 24 David set out orders for the cohanim to serve in the Beis Hamikdash. What he established is intuitive for a 12 month year, but what was done in a 13 month year? If possible, ...
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Why Kaddish for a parent is said for eleven months?

This answer cites a source which explains that Kaddish for a parent is customarily not said for 12 months so as not to imply a parent's status as that of "wicked." Not wanting to label a parent ...
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System of counting months in Noach

Going through Noach with the help of Rashi, there are 3 different systems of counting months. From (Tishrei|Nisan) 1 2 3 From (Kisleiv|Sivan) when the rain stopped From (Cheshvan|Iyar) when the rain ...
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Did the people who followed the triennial cycle celebrate “Simchat Torah” in the same manner as those who followed the annual cycle?

I noticed this related question that briefly discusses Simchat Torah, but it mainly answers those that follow the annual cycle. People following the annual cycle clebrate Simchat Torah on a Yom Tov (...
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Did Brit with rainbow happen in Kislev?

I read on torahvort.com in their article on Kislev that the Brit with Noach about the rainbow happened in Kislev. We know from the end of Ber 8:27 that Noach left the ark on the 27th of the 2nd month, ...
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Why can we do Tashlich until Hoshana Rabba

One of the reasons to do Tashlich, according to Chabad.org is: "Another reason for saying Tashlich next to a river is because Rosh Hashanah is the day when we coronate G‑d as King of the Universe. ...
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The connection between Tishrei and Tevet

Can anyone steer me towards resources which explore a connection or relationship between Tishrei and Tevet (I assume, on a mystical level). Both months have a fast day on the 10th day and the full ...
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If a Beis Din Makes a Mistake When Calculating Kiddush HaChodesh, Does it Count?

On one hand, the Rambam says (in 2:10) Once the court sanctifies the new month, it remains sanctified regardless of whether they erred unwittingly, they were led astray [by false witnesses], or ...
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What is the date ending the 700 years mentioned in these midrashim?

Based on this answer I was able to have some extra fun reading over Shabbat. First, I would like to say, that I was amazed as to how much of the material I was allready familiar with, mostly from ...
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Are anniversaries celebrated in Adar I or Adar II?

For those who celebrate anniversaries, or for calculating the end of Shanah Rishonah, if a couple gets married in Adar of a non-leap-year, when is the anniversary celebrated in a leap year? Is it in ...
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Why doesn't our decrease of joy extend beyond Tish'a B'Av?

Citing from here There is a famous Mishnah that is cited towards the end of Masechet Ta’anit (4:6) that states: “Mishenichnas Av, Mema’atin Besimcha” “When the month of Av arrives, we ...
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The story of the Minim and Boethusians; trying to fix the festival of Shavuot on Sunday

I've found different sources like the Mishnah, Babylonian Talmud (tractate Rosh HaShanah), Jerusalem Talmud, Tosefta etc., talking about the Minim and the Boethusians who wanted to fix the festival of ...
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What factors were used for determining leap years while the Israelites were in the desert?

I am trying to "co-ordinate" Rambam"s explanation of how to determine Judaic leap years with a key verse in the Torah. Ranbam states in Mishneh Torah, Sanctification of the New Month 4:2: Mishneh ...
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Looking for a computer program or method to list all weekday / Shabbat no-El_Maleh days

My shul has asked me to compile an annual list of all days when "El Maleh" (prayer said for yahrtzeit) is omitted. People in my shul know that it is said any day the Torah is read, meaning Mon., ...
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186 views

Menorah with uneven spacing

The following assumes lighting an additional candle for each day of Chanukkah: Two may light in a single Menorah for the first three days of Chanukkah; each in his end of the Menorah. This does not ...
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Why are the daily tehilim divided as they are?

How were the daily starting and ending points for weekly and monthly readings of all of tehilim chosen? Are they just chosen to make them all approximately the same length, or are there specific ...
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Not making a wedding on the first 3 days of a month

I've heard there is a custom (practiced in various kehillas, I heard Belz is one of them) to not make a wedding on the first 3 days of a month (meaning alef, beis, or gimmel of a particular month.) ...
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175 views

What are the Jewish months exactly?

I am aware that the names of the months are derived almost directly from the Babylonian calendar and that the Chumash itself never mentions a month by name and instead refers to it by number. Later on ...
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Will the day of the final salvation be celebrated every year in the days of the Moshiach?

Following "what-berachos-should-be-made-when-moshiach-comes", I wondered, for all the great events that G-d did to us we set (in the Torah or Rabbinically) a yearly festive - celebrating the date - ...
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Colours for months

According inner.org, each month of the year has a corresponding colour to it. This does not seem to be in Sefer Yetzirah. What is the source for this and what is the significance with regards to each ...
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What calendar-dependent laws must non-Jews follow?

While the calendar is vastly important in Judaism, it seems like it is barely applicable to non-Jews. The "big seven" Noahide laws seem to be perenially applicable; they dictate general rules for life ...
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How do we know that the Judaic calendar should be primarily lunar based?

There is nowhere in the Torah that specifically mentions that the calendar cycle is to be based mainly on a lunar cycle. (I'm intentionally omitting the notion of the solar / seasonal influence of ...