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

learn more… | top users | synonyms (1)

5
votes
4answers
212 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.?
1
vote
1answer
48 views

What is the source for observing Purim Katan?

As this year is a Judaic leap year, we shall be observing Purim Kattan ("little" Purim) on the 14 and 15 of Adar I (Feb. 24 and 25 on the Gregorian calendar.) (This holiday occurs every Judaic leap ...
11
votes
3answers
196 views

Why not two days of Rosh Hodesh, as we have two days of yontif?

The reason for two days of yontif (outside Israel) is based on uncertainty about the date due to distance from Jerusalem and time needed to travel to convey the news of when the month started. The ...
1
vote
0answers
47 views

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., ...
2
votes
1answer
50 views

Between Shemini Atzeres and the Shemoneh Esrei 9th blessing's prayer for rain

In the Shemoneh Esrei, the line "who makes the wind blow and the rain descend" is added to the Second Blessing from Shemini Atzeres. The request to "give dew and rain for a blessing" is not added to ...
-4
votes
1answer
65 views

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 ...
3
votes
1answer
150 views

Where is the source for assigning a pasuk to each year since creation?

I remember having been told that there are those who assign each of the 5845 pesukim in the Torah to each year since creation. This is from memory as I have not found the reference yet. Would anyone ...
7
votes
2answers
191 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 ...
5
votes
3answers
125 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 ...
45
votes
5answers
3k views

How do we know that the civil Saturday is the correct Shabbat?

Disclaimer: I am not a religious Jew, this question is only out of curiosity. I understand that observant Jews observe Shabbat from Friday night to Saturday. And from this question and this it seems ...
11
votes
5answers
3k views

How Do I Know If it's a Hebrew Leap Year?

How can I tell if a given year is a Hebrew Leap Year? The simpler, the better. [Assuming we are using a fixed calendar, not like the "olden days".]
3
votes
2answers
231 views

Looking for a Niddah Calendar calculator

I am looking for a program that calculates the different significant dates for hilchos Niddah based on the information you give it. My criteria are as follows: Must be free Must be PC compatible ...
13
votes
1answer
238 views

Why does the torah give us exact dates for the flood?

This question asks why the flood didn't end on the 18th of Cheshvan (one year after the start). My question is more basic: why does the torah give us precise dates here at all? Bereishit 7:11 tells ...
9
votes
1answer
185 views

What is a ger's birthday in terms of Jewish astrology? conversion date or birth date?

In terms of Jewish astrological signs and influences on people, per Kabbalah, would a ger use their actual 'birth' date or their date of conversion which is considered a rebirth?
5
votes
3answers
1k 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 ...
5
votes
2answers
145 views

Time Parameters of Mishenichnas Adar Marbin B'Simcha

Is "Mishenichnas Adar Marbin B'Simcha" just for the month of Adar, and then you take a step down in simcha for Nisan? Or are you supposed to raise your level of simcha and stay there until Av, when ...
14
votes
1answer
766 views

Praying for rain in the Diaspora

Why on this year (and on other years that precede civil leap years) do we start praying for rain in the Diaspora (by inserting the phrase 'Vetein tal umatar") at maariv of December 5 and not maariv of ...
1
vote
3answers
593 views

Creation of State of Israel and birth of Abraham - 1948

According to the Jewish calendar, Abraham was born on the year 1948. The state of Israel was declared in 1948 according to the secular calendar. Is there any significance to this or is it just ...
-1
votes
1answer
38 views

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?
1
vote
1answer
78 views

Is there a zero year in the ancient Jewish calendar?

I have recently been informed that the ancient Jewish calendar does not count the year at the beginning of a century: no zero year. So for example 1999- 2001 is one year not two. This can be important ...
3
votes
0answers
143 views

What is the significance of a Blood Moon in Judaism?

Is it true that the appearance of a Blood Moon is an omen in Judaism? And why it happens to be coinciding every time with a Jewish holiday since quite a while? I would like to know about the facts and ...
8
votes
2answers
822 views

Why do Jewish funeral homes tend to be the main supplier of Jewish calendars?

Perhaps, this question is too "trivial". It seems that Jewish funeral homes tend to be the primary "printer" and supplier of Jewish calendars. For decades, many yeshivot as well as shuls get the large ...
0
votes
1answer
121 views

247 year Jewish calendar cycle

I recently read on Matzav.com an article by Rabbi Dovid Heber discussing the 247 year cycle in the calendar. He mentioned that every 247 years the Hebrew calendar is exactly identical. Now in the ...
1
vote
1answer
80 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 ...
4
votes
1answer
156 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, ...
6
votes
1answer
212 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?
1
vote
2answers
43 views

How are parshas dealt with during the leap year's leap month? Also on haftorahs?

The Torah is divided into parshas and read each Shabbat. So during leap year, how is it handled? For haftorahs, same question. Also there are some parashas that are 2ndary to the main ones ...
2
votes
1answer
63 views

What is the real first month of the Jewish year?

The Torah passage explaining Rosh Hashana says: "In the seventh month, on the first day of the month, you shall have a rest-day, a day of remembrance, horn-blowing, and holy assembly. [...] The tenth ...
2
votes
2answers
2k views

How do non-literalist Jews interpret the “year zero” in the Hebrew calendar?

As I understand, the Hebrew calendar is counted from the "date of creation". Currently you have the year 5774. In the Christian world there are some creationists who also believe that the world is of ...
3
votes
0answers
32 views

Was there any limit to the number of consecutive “full” (30 day) or normal (29 day) months during the time of the Sanhedrin?

When Sanhedrin existed, each month had to be sanctified by Sanhedrin after testimony of 2 witnesses (or automatically by Sanhedrin if no one appeared by the end of the 30th day.) Refer to Maimonedes ...
7
votes
2answers
111 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 ...
1
vote
1answer
27 views

Earliest to do kapporos

What is the earliest date that you can do Kapporos? Is it rosh hashanah? (Note: I'm not asking for the best or most preferable time.)
4
votes
1answer
58 views

Why begin selichot on a Sunday rather than on a date?

We ashkenaz start selichot on a Sunday. Sunday is a day of the week. Usually we start events on a given day of a given month (e.g., rosh hodesh, rosh hashanna), or after a given number of days ...
1
vote
1answer
45 views

Agricultural events and the Jewish calendar

There are many dates in the Jewish calendar that are connected to agricultural events. They include: Shavuot is Chag Ha'Katzir, the Holiday of the Harvest - Shemot 23:16 Sukkot is Chag Ha'Assif, the ...
2
votes
1answer
51 views

Seeking (a) web site(s) that discuss(es) Judaic calendar statistics

I am compiling a short shiur for my shul on Rosh Hashanna. I plan on discussing some items related to the Judaic calendar, with a focus on some statistics that I can eventually put into Excel and / or ...
1
vote
1answer
28 views

When do sefardim begin reciting selihot?

Since rosh hodesh Elul is a mini-holiday do you need to wait till the day after rosh hodesh or do sefardim begin saying selihot on the first of Elul?
6
votes
1answer
465 views

Who divided the Tehillim into days?

Who divided the Sefer Tehillim into daily sections (both day of week and day of month)?
2
votes
1answer
173 views

What will Lubavitchers do in 2052?

There's a Chabad-Lubavitch custom of reciting a psalm of T'hilim corresponding to one's age. That is, for example, in one's fourteenth year of life (e.g. on his thirteenth birthday), he says the ...
1
vote
0answers
54 views

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 ...
6
votes
1answer
67 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?"
8
votes
4answers
213 views

Why did Hashem create the world in such a way that a leap year is needed?

I understand why we have a leap year; to keep the sun and moon cycles in sync, so that Pessach is always in the spring. That's all technical, as a result of the moon orbiting too slowly - or the sun ...
7
votes
1answer
279 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?
5
votes
1answer
67 views

Illustrated hilchot Kiddush Hachodesh

I remember seeing about 20 years ago a beautiful annotated commentary on Rambam's hilchos kiddush hachodesh, with extensive illustrations and calculations, explained according to both ancient and ...
2
votes
1answer
88 views

During Purim Meshulash, why does the Seudah take place on Sunday?

When Shushan Purim falls on Shabbat, residents of Jerusalem spread the observances of Purim over three days: Megillah reading & meshloach manot on Friday, Al HaNissim and Purim Torah reading on ...
6
votes
4answers
130 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 ...
-2
votes
1answer
7k views

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 (Trying to get Shmita year dates without a headache) and (When is the next shmita year (as of 5772)?); however, they don't appear to provide either a table ...
7
votes
2answers
172 views

Why celebrate Lag Ba'Omer on the 33rd according to the MaHaRIL?

There are several different opinions about when the students of Rabbi Akiva died, and which days we mourn for them. Sefer HaToda'ah quotes the Maharil, who says that the students of Rabbi Akiva died ...
3
votes
0answers
84 views

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 ...
6
votes
3answers
650 views

Why still keep two days of Yom Tov outside of Israel?

Why do we continue to keep two days of Yom Tov outside of Israel? The reason for two days was revelant during the temple era as we needed two witnesses to see the new moon. But today, with no Temple ...
3
votes
2answers
119 views

Birchas Illonos questions

From when until when are you allowed to make the bracha,and what is optimum?