Questions tagged [calendar]

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

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Holy days on the weekend [duplicate]

There are 13 holy days per year on which we must not work (outside of Israel): 2 Rosh Hashanah, 1 Yom Kippur, 4 Sukkot, 4 Pessah, 2 Shavuot. What are the minimum and maximum numbers of these days that ...
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Are there any halachic sources that discuss the Qumran calendar?

As a Torah reader, I was fascinated when I visited Heichal Hasefer - "Shrine of the Book" and read about the Qumran society and their calendar. As far as I know, there doesn't seem to be much, if ...
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Time as a Spiral

@PixelArtDragon asked what rabbi originated the idea that time is a spiral. @PixelArtDragon said that the earliest they've found is Rav Natan Breslov who lived from 1780-1844 - can anyone locate that ...
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What verses in Na"ch describe the details of Jewish calendar like Kidush HaChodesh and Ibbur Hashanah?

The Gemmorah in Jerusalem Rosh Hashana 6a explains the process of adopting the Babylonian names instead of Biblical ones. דא"ר חנינה שמות חדשים עלו בידם מבבל R'Hanina said: the names of the ...
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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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31 views

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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39 views

The date of Amalek fighting Moses and Israel in the wilderness [duplicate]

וַיָּבֹא עֲמָלֵק וַיִּלָּחֶם עִם־יִשְׂרָאֵל בִּרְפִידִם׃ Amalek came and fought with Israel at Rephidim. (Ex 17:8) When exactly was it, what day was chosen to fight the Israelites and why that ...
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37 views

Why the Second day of Rosh Hashanah isn't בל תוסיף? [duplicate]

Rosh-Hashanah is clearly one day from the Torah. As it falls on the first day of the month, in the days of keeping the Real New Moon, there's no way of informing the other places outside Jerusalem, so ...
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101 views

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 ...
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242 views

Question about Shemitah years etc [duplicate]

20/01/15 Trying to find out- --I know a "shemitah" is a 7 yr. period. What confuses me is this: how do we know what specific years are the "shemitah" (e.g. Sept./07 to Sept./14 or Sept./08 to Sept./...
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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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49 views

History of 7 Teveis [closed]

**Looking for answers as to what happened in Jewish history on this date. It can include both positive and negative occurrences. It can also include birthdays or Yarzheits of well known personalities ...
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Purim and Pesach in the same month

This year, Purim and Pesach occur in the same Gregorian month. Has this occurred previously? If so, when?
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Is it accurate to count down years in Ancient Jewish calendar? [closed]

Do we say that the smaller the number date for BCE calendar the more recent the year? Count backward to go forward? And is it true that from 1BCE to 1CE is one year?
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135 views

Why is Adar 1 30 days long?

The Talmud Ta'anit 6b says אין בין אדר הראשון לאדר השני אלא קריאת המגילה ומתנות לאביונים "There is no difference between the 1st Adar and 2nd Adar except for reading the Megillah and giving presents ...
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54 views

Why were leap years decided only by judges and not with the cooperation of witnesses?

Ramba"m Hilchot Kiddush Hachodesh 4:9 says: The year can be made full only by [judges] who were invited [to participate in the deliberations]. What is implied? The head of the High Court tells [...
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49 views

Pshat in Pasuk of Velo Yavor

Chazal say that the reason why we don't read the Megillah on the 16 is because the passuk (Esther 9:27) says "velo yavor" - וְלֹא יַעֲבוֹר. Why is there a need for this Passuk? The Megillah said that ...
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How did they use to count years in the time of Abraham? [duplicate]

Possible Duplicate: Rationalist Position on Bible Ancients' Long Lives The bible states that Abraham has lived for 175 years, Yishmael lived for 137 years, and so on and so forth. Now, ...
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258 views

What parsha is the most commonly read parsha? [closed]

Which Parsha has the most Kriyos Hatorah from it?
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Which verse is correct? Genesis 1:14 or Leviticus 23:27? [duplicate]

Genesis 1:14 says that all Appointed Times (מועדים) are determined by the Sun and the Moon Phases. For example, all Holy Meetings (מקרא קדש) in the 1st or 7th months fall on moon phases. However, ...
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What are the exact Shmita dates (in Gregorian) since 1900 or a general formula for determining the dates?

I know there are these two questions already (https://judaism.stackexchange.com/questions/36703/trying-to-get-shmita-year-dates-without-a-headache) and (When is the next shmita year (as of 5772)?); ...
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Importance of “Days” in the process of Creation

Why is it important that the Creation process is divided into 6 "days", as opposed to "parts" or "stages" or even presented in simple succession without mentioning "units"?
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Sources for how many days of holidays are there per year?

Specifically, I am looking for a traditional source like the Baal Haturim. I overheard that a number that I don't remember, but basically like 49 days out of the year are holy days. Is there a mesorah ...
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Why Yom Kippur is on the 10th of the 7th month?

Why Yom Kippur is on the 10th? This date does not make sense! If you search through the Written Torah, you will see that nothing happened on this date. Wouldn't it make sense to have Yom Kippur on the ...
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How can traditional calendar be correct? [closed]

Traditional calendar has two Shabbats in a row. For example, Passover 2008 was preceded by Shabbat. 1st day of Passover is a Holy Meeting and it is called a shabbat too. Calendar can't have two miqra ...
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Is the year “5778” that will come into effect on 1 Tishrei (tomorrow), six months early or six months late? [closed]

Is the world at least six months older or younger than 5,778 Years? Is the year "5778" that will come into effect on 1 Tishrei (tomorrow), six months early or six months late, knowing that the New ...