Questions tagged [calendar]

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

Filter by
Sorted by
Tagged with
1
vote
1answer
49 views

How can I calculate the number of days in a Hebrew month in a given year

Shalom, I am creating some pastoral care software for synagogues. One feature is the tracking of anniversary dates of life events - simchas, yahrzeits, etc. For this, I allow the user to set a ...
33
votes
10answers
1k 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 "...
1
vote
0answers
57 views

Is there a book or online source explaining Jewish year-“type” sequences?

The current Judaic calendar allows for three types of year lengths: Chaser ("missing") - 353 days Kesidra ("in order") - 354 days Shalem ("full") - 355 days (Add 30 to each of the above for leap ...
5
votes
1answer
266 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 ...
3
votes
1answer
94 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 ...
1
vote
3answers
135 views

Significance of 3 Teveis in Judaism [closed]

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 ...
18
votes
4answers
474 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 ...
3
votes
5answers
995 views

Why do we count years from the date of Creation?

Why do we count years from the date of Creation? I intend two sub-questions here, of which the second is far more interesting, so please answer it: Whence did this tradition originate? Why do we ...
4
votes
1answer
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 ...
6
votes
2answers
441 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 ...
4
votes
2answers
761 views

Why was the calendar not arranged so that Yom Kippur never falls on Shabbat?

Our Sources give the impression that Shabbat is the holiest of the yamim tovim. On Shabbat, we rest, eat and drink of the best, sleep, rejoice, have sex with the spouse, wear nice clothes, etc. It ...
5
votes
2answers
241 views

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 ...
3
votes
0answers
21 views

Difference of leining between Israel and Chutz Laaretz in 5779 [duplicate]

As anyone may know, because the last day of Pesach in chutz laarets fall out on Shabbat we read the special parsha for the 8th day of Pesach while in Israel since it wasn't Pesach anymore, they read ...
8
votes
3answers
421 views

Parashas Shavua calculation

I'm writing a site where the user would be able to see the calendar with jewish-civil translation of dates, and also which parasas shavua falls on which Shabbos. I'd like to know what is the formula ...
1
vote
2answers
50 views

Did R' Akiva's students die in one year?

שנים עשר אלף זוגים תלמידים היו לו לרבי עקיבא מגבת עד אנטיפרס וכולן מתו בפרק אחד מפני שלא נהגו כבוד זה לזה Rabbi Akiva had twelve thousand pairs of students in an area of land that stretched from ...
4
votes
1answer
41 views

Yahrzeit in different time zone

If a person passes away in one place but [some] relatives live in another place in which, due to time zone differences, it is already the next day (or still the previous), do those relatives establish ...
2
votes
0answers
36 views

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, ...
-2
votes
1answer
33 views

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 ...
2
votes
4answers
561 views

Which Brachas are said only once a year?

I am looking for a list of Berachos/blessings that are recited a maximum of once per year. Which blessings (from prayer, Jewish rituals, or otherwise, by men or women) are recited only once per year?...
3
votes
0answers
19 views

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 ...
2
votes
0answers
44 views

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 ...
4
votes
3answers
198 views

Secular Names for Days of the Week

Is there a problem using the secular names for the days of the week? If there is a problem, is it because: 1) The names originally come from Polytheistic gods OR 2) The people forbidding them are ...
5
votes
2answers
49 views

Is there a difference between ירחים and חדשים?

As a word meaning "months," the word חדשים is used in Ber. 38:24 and then multiple locations after Sh'mot 12:2. יְרָחִים appears in Sh'mot 2:2, then (possibly) in Dev 33:14 and twice in Iyov. When ...
0
votes
0answers
25 views

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 - ...
0
votes
0answers
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 ...
6
votes
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.
0
votes
0answers
38 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 ...
4
votes
1answer
50 views

Is there a limit to the number of consecutive leap years?

The Rambam in Hilchot Kiddush Hachodesh 4:5 (Thanks @DonielF) states that Sanhedrin was allowed to declare a leap year not just based on "seasonal alignment' (I.e. 16 Nissan should be after the spring ...
0
votes
2answers
40 views

What exactly do we celebrate on Purim - the 14th of Adar?

In the Purim timeline, we can see a series of beneficial events: the King couldn't sleep and remembered Mordechai (the turn of the story) Hanging of Haman with his sons and Appointing of Mordechai ...
4
votes
0answers
193 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 ...
7
votes
4answers
844 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 ...
-4
votes
1answer
146 views

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 ...
4
votes
1answer
76 views

Why do we need a separate celebration for Shushan Purim in walled cities?

Purim is celebrated on Adar 14 because that was the day the Jews rested after prevailing against their enemies. In walled cities, Shushan Purim is celebrated on the 15th because that was when the ...
3
votes
2answers
134 views

When does the year start in terms of saying “Ulichaporas Pasha” for a leap year?

When we add the words "Ulichaporas Pasha" during Musaf of Rosh Chodesh when it's a leap year, when is the year determined - Nisan or Tishrei?
7
votes
2answers
152 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?
3
votes
0answers
22 views

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 ...
4
votes
1answer
75 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, ...
1
vote
0answers
30 views

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 ...
5
votes
1answer
230 views

Longest Jewish year

This year, 5779, is the longest possible year on the Jewish calendar. Not only is it a leap year, but Cheshvan and Kislev both have 30 days, for a total of 385 days. How often does that happen?
0
votes
1answer
43 views

Is there any situation when the haftarah of Tetzaveh might be read during a non-leap year?

This past Shabbat, we read the haftarah of Tetzaveh. If I have calculated correctly, I don't think there is any situation where this haftarah would be read during a non-leap year. I think that ...
18
votes
3answers
385 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 ...
2
votes
2answers
203 views

Why do we have Adar I & Adar II- why don't we give the additional month a new name?

Building off the question of why Adar is chosen as the month to be doubled, why in a leap year do we have an Adar I and Adar II? Why wasn't the additional month given a brand new name?
1
vote
1answer
75 views

Jewish and Gregorian year's last digit

I've noticed that outside of the period between Rosh ha-Shana and 31 of December (included) the last digit of the current year in both systems is always the same, e.g. 5779 - 2019 What are the ...
4
votes
1answer
106 views

Why is 1 Elul / 1 Tishrei the New Year for livestock?

The first Mishna in Rosh Hashanah says that 1 Elul is the new year for livestock, i.e. I can only tithe one year's "crop" of livestock at a time, so 1 Elul delineates the herds. (Update: we follow the ...
7
votes
1answer
252 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 ...
3
votes
3answers
7k 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 ...
10
votes
1answer
503 views

Why does the date for the prayer for rain change from one century to the next?

My due diligence: Praying for rain in the Diaspora How to calculate 60 days from tekufat tishri for any given year? On which evening should we start saying “V'tein tal u'matar li'vrachah”? I see ...
3
votes
0answers
73 views

On which evening should we start saying “V'tein tal u'matar li'vrachah”? (The ArtScroll siddur disagrees with The Book of Our Heritage.) [duplicate]

If a Jew lives outside of Israel, they should start saying "וְתֵן טַל וּמָטָר לִבְרָכָה" ("And give dew and rain for a blessing") during evening prayers on a certain evening in December. Various ...
2
votes
2answers
453 views

How to calculate 60 days from tekufat tishri for any given year?

I'm trying to pin down an algorithm for calculating when to start saying ותן טל ומטר in diaspora. (In Israel it begins 7 Cheshvan.) I've gotten that we need to know how many centuries passed since ...
2
votes
1answer
515 views

What are the months of Jewish civil and religious calendar?

I understand that Jewish religion has two calendars; one is Civil for Kings, childbirth, contracts etc. and second for festivals. what are the months of these calendars and how they are related ...