Questions tagged [calendar]

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

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8
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2answers
899 views

If Yom Kippur hypothetically fell on Sunday, would you make havdalah?

I was curious about this hypothetical situation. If Yom Kippur would fall on Sunday, Motzei Shabbat, so immediately when Shabbat ends, Yom Kippur starts. Would there be some sort of separation, בין ...
8
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5answers
263 views

History of Shabbat: how (or) did they count to align with 7th day of creation?

The Torah (Exodus 20:8-11) commands: ח: זָכוֹר אֶת יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ: ט: שֵׁשֶׁת יָמִים תַּעֲבֹד וְעָשִׂיתָ כָּל מְלַאכְתֶּךָ: י: וְיוֹם הַשְּׁבִיעִי שַׁבָּת לַה' אֱלֹקיךָ לֹא תַעֲשֶׂה ...
8
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4answers
332 views

How accurate is the Molad?

To the best of my knowledge the Molad is every 29.5 days + 793 Chalakim. Is there any information showing if the current Molad calculation is accurate scientifically? If it is off by how much is it ...
8
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2answers
101 views

Joseph and Chanukkah

The Parshiot about Joseph always fall right before or during Chanukkah. It their a relationship between the Joseph stories and the Chanukkah stories? It there something to be learned from the fact ...
8
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1answer
346 views

When is “vesain tal umotor” said in Australia?

When is "vesain tal umotor" said in the Southern Hemisphere eg Australia?
8
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3answers
309 views

How was Rosh Chodesh determined, if a New Moon Cannot be Seen?

1. Question / Issue : If a New Moon cannot be seen, then it seems that the first visible confirmation of a New Moon is actually the Waxing Crescent Moon, which can only be observed after the New Moon ...
8
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2answers
297 views

Why isn't Rosh Hashana on Elul 30 and Tishrei 1

When Rosh Chodesh is two days, it's on the 30th of the old month and the first of the new month. Rosh Hashana falls on the beginning of the new month of Tishrei. Why then is Rosh Hashana on Tishrei ...
8
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1answer
124 views

Getting a late start on being Maavir Sedra for the year

I remember hearing when I was younger that ואלה שמות - is Roshei Teivos V'Chayav A'dam L'haavir H'sedra S'htayim M'ikra V'echod T'argum. If someone who has not been Maavir Sedra so far this year is ...
8
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1answer
199 views

New date at sunset: question on Sifse Chachamim

Avoda Zara 25 cites a difference of opinion as to how long the sun stood still for Y'hoshua: twelve hours, twenty-four, or thirty-six. According to those who say twelve or thirty-six, the sun finally ...
8
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1answer
111 views

Historical Calendar Records

Are there any records of the Beis Din's decisions regarding the Hebrew Calendar (e.g. to add months, how long the month would be), before Hillel Hakatan established the fixed calendar?
8
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2answers
287 views

“לְחֹדֶשׁ שְׁנֵים עָשָׂר” in the Megillah and Al Hanisim

As I was reading Al Hanisim this year, something odd struck me "לְחֹדֶשׁ שְׁנֵים עָשָׂר" - the 12th month. What struck me was that this year is a leap year so we actually celebrated Purim in the ...
7
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4answers
973 views

What's the point of a haftorah for Miketz if it's always Shabbat Chanukah?

I have heard that parshat Miketz always falls out on Shabbat Chanukah. If that's the case, why do chumashim print a haftorah for Miketz in addition to the one for Shabbat Chanukah? Should the Chanukah ...
7
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3answers
742 views

Eclipse of the moon, bad sign for the Jews

Tonight, December 20, 2010, there will be a full lunar eclipse visible from North America and many other areas. I recall there is a Gemara that says that a lunar eclipse is a bad omen for the Jews as ...
7
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1answer
317 views

A cryptic Seder HaDoros regarding to the year of Jesus' birth

Regarding the year of Jesus' birth, it says in Seder HaDoros (Year 3724) that the year 3724 and the year (3)532 are really the same. What in the world does he mean? Its in the first column first ...
7
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1answer
436 views

6 chapters of Avos in 7 weeks

Some study pirke Avos weekly through the summer, from Pesach to Rosh Hashana. Others do so only for the six Shabasos between Pesach and Shavuos, one chapter a week. I've heard the latter custom ...
7
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5answers
657 views

Is it permissible to write the English/secular date?

Is it permissible to write the secular/Christian date? Example: On a letter (bad example but you get what I mean). Some conceivable issues: We're told "this month (Nisan) shall be for you the head ...
7
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2answers
229 views

Why is Shavuos all alone?

Why is it that, out of the 16 days of non-High Holiday biblical festivals (7 days of Pesach + 1 day of Shavuos + 7 days of Sukkos + 1 day of Shemini Atzeres), only the single day of Shavuos is without ...
7
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1answer
124 views

Why some biblical holidays don't occur on certain days of the week?

I looked on the Hebcal website to see when the Erev Pesach will occur in the future (and also looked at the past), but found out that it's never a thursdag or sunday, did the Erev Pesach ever was or ...
7
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2answers
153 views

Parshas Zachor before Purim?

Prior to the story of Purim was there a special yearly reading of Parshas Zachor? At which point in history was it instituted to read Parshas Zachor before Purim?
7
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1answer
123 views

Tisha b Av calendar confusion

I don’t understand the calendar this holiday: iOS says today is 10 Av hebcal.com says 10 Av as well but: google says Tisha b Av is today chabad.org says Tisha b Av is today (https://www.chabad.org/...
7
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3answers
516 views

Mashiach in year 6000?

I have heard in various discussions that we have an idea that mashiach will come at the latest by year 6000. Is this a normative belief? Furthermore, is this a belief that is understood literally by ...
7
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1answer
335 views

Where in tanach are the months named

In megilas esther the months of the year are called out by name. For example the 12th month is called adar. Is there anywhere else in tanach that months are referred to by name?
7
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2answers
355 views

Why was there a huge concern to assure that Hoshanna Rabbah is not on Shabbat?

This page lists 4 rules that may cause the first day of Rosh Hashannah to be postponed from being on the date of the molad Tishrei. One of the rules is: If molad Tishri occurs on Sunday, Wednesday, ...
7
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1answer
323 views

An improved Jewish calendar after this one expires?

Conventional wisdom has it that about 1600 years ago, the latter Hillel utilized his Sanhedrin to sanctify the Hebrew calendar as we know it today until the year 6000. (Presumably by that point we'll ...
7
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1answer
611 views

Rosh Hashana can't currently land on a Friday, but the first one did

The current fixed calendar works in such a way so that the first day of Rosh Hashana can never fall out on a Friday, but this is the very day on which the first Rosh Hashana fell! What gives?
7
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1answer
250 views

Tachanun on Monday and Thursday

Why do we say a longer Tachanun on Mondays and Thursdays compared to the other days of the week?
7
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1answer
256 views

Late sunset times and Jewish observance

This question is distinct from other questions which ask how and when to begin Shabbat, etc. when there is no sunset. I am asking about places in which sunset occurs very late during certain times of ...
7
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1answer
205 views

Is Shushan Purim observed (in theory) in Shush, Iran?

Shushan, Achashveirosh's capital, is identified with the modern Iranian archaeological site of Susa. A city, Shush, has been established nearby. In modern-day Shush, (if any Jews lived there), what ...
6
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4answers
382 views

Why do we use Adar, specifically, for the Jewish leap year?

Why when we add an additional month to the year do we only add it in Adar? Why not have a second Cheshvon or a second Shevat, etc.?
6
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4answers
614 views

Cheshvan or MarCheshvan?

The month of Cheshvan is called by many MarCheshvan. Are both correct or which one is more correct?
6
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3answers
2k views

Google says it is the Jewish Year 5774. The wiki says Judaism is 3000 years old. How is this discrepancy reconciled?

Google says it is the Jewish Year 5774. The wiki and other sources say Judaism is 3000 years old and suggest Abraham was born 4000 years ago. Where is the discrepancy? I am perhaps looking for an ...
6
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3answers
136 views

Fast of the Tenth of the month of Teves

What is the significance of the Fast of the Tenth of Teves?
6
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3answers
421 views

Historical Daf Yomi calendar

Is there a website that allows you to find what Daf was studied on the a particular date as part of the Daf Yomi cycle?
6
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2answers
444 views

What did people say in Shemoneh Esrei and Kiddush of Shavuos when it didn't fall out on the 6th of Sivan?

During Shemoneh Esrei and Kiddush of Shavuos, we describe the Yom Tov as "this day of the holiday of Shavuos, the time of giving our Torah" (יום חג השבועות הזה זמן מתן תורתינו). Before we had a fixed ...
6
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2answers
116 views

Why do the Destruction-related Fasts not have names?

There are three Fasts on our calendar that commemorate stages in the destruction of Jerusalem and the Temple: 17 Tammuz 9 Av 10 Tevet (I realize that we could consider Tzom Gedaliah a partial ...
6
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1answer
1k views

When is a convert's Hebrew birthday?

Is it their conversion date, the Hebrew date on which they were biologically born, or something else? (For questions of halachic age as well as mystical significance)
6
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1answer
276 views

What are these marks with the numbers designating the Jewish years on this calendar?

I can see that the Hebrew is Elul 775 to Tishrei 776. What are those marks prior to the Hay and the Vav?
6
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1answer
85 views

Southern Birkas Ha'ilanos

I've seen Saying Mashiv HaRuach in the Southern Hemisphere. Similarly, is Birkas Ha'ilanos (ברכת האילנות) said in Tishrei in the southern hemisphere? That's when the trees bloom.
6
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1answer
693 views

Date of the Akeida?

Are there sources in our tradition which discuss the Hebrew date of Akeidas Yitzchak? The fact that we read the Akeida on Rosh Hashana or, properly, every day suggests to me that the "real" date is ...
6
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1answer
280 views

Late Yom Hatzmaut

What is the rule: when is Yom Hatzmaut moved from the fifth of Iyar to an earlier or later date?
6
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1answer
696 views

Who divided the Tehillim into days?

Who divided the Sefer Tehillim into daily sections (both day of week and day of month)?
6
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2answers
202 views

Number of Yamim Tovim that fall on Shabbos

In a given year, a certain number of Yamim Tovim days fall on Shabbos, and a certain number not. What are the minimum and maximum count of Yamim Tovim days that can fall on Shabbos in a single year (...
6
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3answers
4k views

When exactly should an avel (mourner) not be davening before the amud?

An avel (mourner) if possible should also daven before the amud (be the chazan) on weekdays. But certain times of the year especially when tachanun is not said (but not every time) he should not be ...
6
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2answers
1k views

Meaning of the name Sivan

I recently met a young lady with the name of Sivan. She did not know the meaning of it, other than it is a name of a month. I was wondering if there is a meaning to this name and what it is?
6
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1answer
139 views

Why did people date divorce documents according to the Greeks?

According to this article on Jewish Encyclopedia, the conventional Jewish system of dating documents in the Middle Ages (a system called "מנין שטרות") was related to the accession of Seleucus I, the ...
6
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2answers
200 views

Why do Israelis keep one day of Yom Tov?

From what I understand, we outside of Eretz Yisrael we keep two days of Yom Tov as a continuation of the minhag that evolved from the time of the Bais Hamikdash when we would not necessarily know when ...
6
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2answers
261 views

What is the Sod HaIbbur and what is so secret about it?

What is the Sod HaIbbur (secret of impregnation)? I have seen it discussed in many places including the Pirkeu D'Rebbi Eliezer (8th chapter?) in reference to the intercalation for the lunar months of ...
6
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1answer
97 views

What astronomical event, if any, do the 6 tekufos correspond to?

Bava Metzia 106b speaks of 6 tekufos רשב"ג משום ר"מ אומר וכן היה רבי שמעון בן מנסיא אומר כדבריו חצי תשרי מרחשון וחצי כסליו זרע, חצי כסליו טבת וחצי שבט חורף, חצי שבט אדר וחצי ניסן קור, חצי ניסן ...
6
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1answer
264 views

tehillim division not equal lengths

What is the logic behind the unequal divisions of Tehillim into days of the month; the sections are of very varying lengths i.e. the "longest days" are twice the length of the "shortest days?"
5
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6answers
398 views

Gematrias or Roshei Taivos for the year 5772 [closed]

Looking for Gematrios of phrases and/or Roshei Teivos that are appropiate for the year 5772 (by adding up to either 5772 or 772, which is the accepted numerical abbreviation for the year after ...