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

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2
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1answer
49 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 ...
8
votes
2answers
181 views

Is there a best time of year to make aliya?

If one has decided to make aliya, are there particularly good (or bad) times during the year to do so, beyond the desire to be there for chagim? Factors that seem relevant would include tax-related ...
3
votes
2answers
47 views

When did the original names of the months change?

The Haftorah this past week mentions the second month using the name Ziv. The orignal names of the months are discussed here: First-Temple-Era names of the Hebrew months? When did the original names ...
8
votes
2answers
141 views

Why don't islands read the m'gila two days?

Bavli, M'gila 5 amud 2, cites a doubt as to when the m'gila is read in T'verya: on the fourteenth of Adar, as in most places, or on the fifteenth, as in a city walled since the time of Y'hoshua. The ...
1
vote
1answer
21 views

Based on Talmud Bavli Megillah 30a - 30b, how can we have a break betwen Parshiot Zachor and Parah?

According to what it says in the Talmud, the 3rd of the 4 Shabbatot is Parah, and the Talmud says that this 3rd Shabbat is the one immediately after Purim. In most years this is true. However, this ...
8
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3answers
258 views

Is one allowed to make Kneidlach when the last day of Pesach is Shabbos?

According to those who eat Gebrotz only on the last day of Pesach, is one allowed to make Mazta balls when the last day of Pesach is Shabbos? On a normal year, one can cook and eat Gebrotz on the ...
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1answer
29 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 ...
4
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1answer
64 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?
1
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3answers
103 views

Significance of 3 Teveis in Judaism

Is the 3nd day of the Month of Teveis significant in Judaism? Looking for answers as to what characteristics (historical, numerological or otherwise) that is commemorated by or significant to Judaism ...
2
votes
1answer
44 views

Significance of 4 Teveis in Judaism

Is the 4th day of the Month of Teveis significant in Judaism? Looking for answers as to what characteristics (historical, numerological or otherwise) that is commemorated by or significant to Judaism ...
3
votes
4answers
144 views

Significance of 2 Teveis in Judaism

Is the 2nd day of the Month of Teveis significant in Judaism? Looking for answers as to what characteristics (historical, numerological or otherwise) that is commemorated by or significant to Judaism ...
4
votes
2answers
731 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 ...
1
vote
2answers
44 views

Is secular New Year tree considered OK?

this question presupposes that celebrating secular New Year's eve in the first place is OK. I looked here: " Is it ok to celebrate New Years Eve? " and the answers seemed not fully resolved, but my ...
0
votes
1answer
35 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 ...
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2answers
179 views
22
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8answers
580 views

Birthdays in Judaism

Is there any significance in Judaism attached to the day someone was born (aside for the 13th year)? Is there anything wrong with celebrating one's birthday? And is it more correct to celebrate the ...
3
votes
3answers
110 views

Is it ok to celebrate New Years Eve?

Is it ok to celebrate New Years Eve? Which (orthodox, not modox or non-orthodox) rabbinical authority was against it and which one was in favor of it (if such opinions exist).
0
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0answers
38 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 ...
6
votes
4answers
111 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 ...
2
votes
4answers
196 views

How often does Addar II happen?

I was sitting over dinner with the mispaha (family) talking about the calendar and I said that Addar 2 happens every seven years, but my dad said that it happens every four. So, my question is: how ...
2
votes
1answer
97 views

How do I write in Hebrew for a Ketubah, “On the first day of the week, the thirtieth day of Adar I in the year fifty-seven seventy one”

How do I write in Hebrew for a Ketubah, "On the first day of the week, the thirtieth day of Adar I in the year fifty-seven seventy one"? Question was asked by Stephen Spiegel, I'm just posting it ...
3
votes
2answers
112 views

Hebrew Calender API/Library in PHP or Javascript to add days, month or years to Julian date

I have a web project where I need a function either server-side using php or client-side using javascript where I can pass in a Georgian date and have month(s) or years added to it according to the ...
2
votes
1answer
77 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 ...
2
votes
1answer
158 views

Making up a synagogue calendar manually is tedious work. Which software can do the calculations automatically?

Lots of synagogues print up a customized calendar every year. (Sample.) Such a calendar includes shul-specific information (e.g. service times and maybe a weekly class or two) and general information ...
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1answer
29 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 ...
1
vote
1answer
169 views

Is is prefered to have the Pasach meal on the first or second night?

I remember being told that the Seder can be on either the first or second night. Is this true, and if so, is it prefered for it to take place on one over the other, or are they both equal? Edit: The ...
2
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3answers
39 views

Rambam Kiddush HaChodesh - Chapter Six - halacha 5

a copy of a few lines from the halacha: Similarly, when the days of a lunar year are counted in groups of seven, according to the weekly cycle, there is a remainder of four days, eight hours, and 876 ...
2
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0answers
30 views

Concerning the time when Esther must be read

The first Mishnah in Tractate Megilla says: מגילה נקראת באחד עשר, בשנים עשר, בשלושה עשר, בארבעה עשר, ובחמישה עשר--לא פחות ולא יתר. The Megilla is read sometimes on the 11th, 12th, 13th, 14th, ...
4
votes
2answers
113 views

Why not say tachanun until 2 Cheshvan?

It's recorded in most siddurim I've used that some people have the custom to skip tachanun on Isru Chag (the day after Sukkos), and start again the day after, while others don't resume saying it until ...
8
votes
2answers
218 views

How can I identify which dates Jewish holidays/special days fall on?

Not being Jewish I scheduled an event this year, only to learn shortly before it occurred that the date was a Jewish Holiday and so I had essentially excluded Jews. I live in the United States, and ...
10
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1answer
147 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 ...
4
votes
2answers
180 views

Shouldn't the flood have ended on the 18th of Cheshvan?

Inspired by this question: New date at sunset: question on Sifse Chachamim The Torah tells us that the Flood started the 17th of Cheshvan (Bereshit 7:11) and concluded the 27th of Cheshvan (Bereshit ...
0
votes
1answer
28 views

Why is Rosh Hashana two days in Jerusalem?

Rosh Hashana is the only festival celebrated for two days even in Jerusalem, since there was a possibility that witnesses for the new moon would come in the middle of the day and the Beis Din would ...
8
votes
4answers
950 views

Why use Babylonian calendar instead of our own?

Why did the Hebrews not create their own calendar system instead of copying the pagan Babylonians'? I find it interesting that they use a pagan calendar which often honours pagan gods. Why is this ...
12
votes
1answer
678 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 ...
4
votes
1answer
275 views

When was the last time the “Leap Year” postponement rule was used to delay the date of Rosh Hashannah?

This site explains that there are 4 rules that would cause Rosh Hashannah to be postponed 1 or 2 days after the date of Molad Tishrei. You can view all 4 rules on the web site, but rule 4 states: ...
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1answer
1k 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 ...
4
votes
1answer
35 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 ...
4
votes
3answers
242 views

Why is the day of Rosh Chodesh announced before every month except Tishrei?

Why is Tishrei the only month not included in the custom of announcing the day(s) of Rosh Chodesh on the Shabbos before the month begins?
1
vote
1answer
104 views

Churban Bayis Sheini Not on Tisha B'Av?

I recently heard that the destruction of the 2nd Temple was not actually on Tisha B'av, the date of the destruction of the 1st Temple, but that it was pretty close, so the rabbis had it commemorated ...
6
votes
4answers
252 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 ...
9
votes
1answer
174 views

S'feika D'yoma in Niddah

There are several types of vestos (patterns in menstrual cycles) that a woman is able to aquire. One such vesses is the vesses hachodesh, which relies on the day of the (Jewish) month. So for ...
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7answers
137 views

Books on the significance of the months in the Jewish calendar

I am looking for books/sefarim (Hebrew or English) that discuss the different months of the Jewish year, and their overall significance in relation to: Zodiac Signs Tribes Chagim Animals ...
2
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0answers
42 views

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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2answers
370 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 ...
4
votes
1answer
283 views

When is Musaf said?

When is the Musaf said? I know it is part of the Shacharit service. I mean when as in what holidays, fast days, etc... Would you say it on Tisha B'av for example. If not, why? At the end of ...
3
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2answers
88 views

Why isn't Hallel recited on VE Day?

There is a good deal of controversy about reciting Hallel on days not ordained by ancient tradition. But there are at least some opinions that Hallel should be recited to commemorate dates of ...
9
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2answers
33k views

When is the next shmita year (as of 5772)?

When is the next shmita year? Is there disagreement about which year? If so, which Jewish sects or traditions believe the shmita is in which years? If you specify years since creation, please also ...
9
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4answers
225 views

Getting a head start on Shnayim Mikra

(Inspired by this question) Can one get a head start on Shnayim Mikra? Would it count if someone either started early (perhaps during the weeks with no Sedra in Tishrei), or just had some spare time ...
7
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1answer
87 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 ...