Questions tagged [calendar]

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

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60 views

Has Elul Been Made Full Since the Time of Ezra?

In the Gemara in Rosh Hashanah (19b) it says: והאמר רבי חיננא בר כהנא א"ר מימות עזרא ואילך לא מצינו אלול מעובר לא מצינו דלא איצטריך הא איצטריך מעברינן ליה Didn’t Rabbi Chinnana bar Kahana ...
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101 views

Names of mazalot in Judaism

Yesterday we discussed that during Zayin Adar we eat fish due to the constellation of Adar. Rambam lists these mazalot, and uses them extensively when discussing calendar calculations. They are also ...
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1answer
116 views

Jewish calendar and the measured time of a year

I'm aware that the Hebrew calendar is lunar based, normally consisting of 12 lunar months and 354.37 days. I'm aware that, to keep the 3 festivals in sync with the seasons, an extra month is added ...
3
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1answer
273 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 ...
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2answers
284 views

Is there any significance to someone's non-Hebrew calendar birthday?

It is believed that there is a significance to one's Hebrew calender Birthday. Is there any significance for one's birthday on other calendars (such as the Gregorian calendar, as well as others)? It ...
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336 views

When is Avraham's birthday?

I saw in a popular book a suggestion that Avraham was born on Rosh Chodesh Tevet. Does anyone have any backing sources for this?
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141 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 ...
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2answers
130 views

Haftarah for yahrtzeit

If one's yahrtzeit falls on a day when there is a haftarah, there is a discussion about whether it's a bigger merit for the deceased to recite the haftarah on that day or before the day of the ...
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34 views

Why are Creation and the Mabul not commemorated independently?

Our calendar marks days and dates important to our existence but they all start from the Exodus from Mitzrayim which makes sense because A -- that's when we started fixing a calendar that related to ...
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How does the Hebrew calendar work in areas with midnight sun? [duplicate]

There are two polar circles, the Arctic Circle and the Antarctic Circle. There are days North of the Arctic Circle, and south of the Antarctic Circle where the sun never sets (summer), or never rises (...
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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 ...
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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 ...
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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 ...
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137 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 ...
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Why Counting Months (first, second) is not a Mitzvah from Torah? [duplicate]

This is not a duplicate, the other question asks about adopting the Babylonian calendar system, please remove the notice. The original names for Hebrew months, as they appear in Torah - are just ...
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42 views

Why are those parshios in particular combined? [duplicate]

The Tur (OC 428), as explained by the Tiferes Yisrael (Shevili d'Rakia 15), lists four dates that must fall out at certain points in the leining cycle: Pesach must fall out after Tzav in a non-leap ...
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Does the proclamation of the New Moon by Beis Din have an effect on nature?

I found in this celebratory volume, p 172 (haoros.com/download.asp?kovetzID=1086&ext=pdf) והנה הרא"ה בספר בדק הבית שלו הובא בש"ך יור"ד סי' קפ"ט סקי"ג הסכים עם קושיית הרמב"ן, ולפיכך כתב שיש ...
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113 views

“Early” leap years [duplicate]

Mishneh Torah, Sanctification of the New Month 4:2 (Sefaria English translation with my modification on the word "Aviv"): עַל שְׁלֹשָׁה סִימָנִין מְעַבְּרִין אֶת הַשָּׁנָה. עַל הַתְּקוּפָה וְעַל ...
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1answer
556 views

Why are the rules for parsha “catch up” different for leap vs. non-leap years? [duplicate]

When Pesach is on Shabbat, as it is this year and next, the Torah reading in Diaspora is a week behind the reading in Israel for a few weeks. This is because on the 8th day of Pesach which is on ...
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88 views

Is there a reference that explains the literal meaning and etymology of the names of the Hebrew months?

Is there a reference that explains the literal meaning and etymology of the names of the Hebrew months? I am looking for something that explains both the common Babylonian names as well as the Tana"ch ...
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Where and when did the numerical time units (hours) originate? [duplicate]

The Torah states no numerical divisions for the day. The closest numeric we find is that there are 7 days in the week, and that the start of the "day" begins with "erev" (and there are debates on when ...
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127 views

Acronym for ה׳תש״ע [closed]

I know that every Hebrew year has one or more acronym for it. What acronyms do we use for the year ה׳תש״ע? Google is not helping me.
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358 views

Why can we do Tashlich until Hoshana Rabba

One of the reasons to do Tashlich, according to Chabad.org is: "Another reason for saying Tashlich next to a river is because Rosh Hashanah is the day when we coronate G‑d as King of the Universe. ...
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The connection between Tishrei and Tevet

Can anyone steer me towards resources which explore a connection or relationship between Tishrei and Tevet (I assume, on a mystical level). Both months have a fast day on the 10th day and the full ...
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Why do we use the Babylonian month names? [duplicate]

Possible Duplicate: Why use Babylonian calendar instead of our own? The Torah refers to the months of the near numerically, the names we employ for things like contracts, birkat hachodesh etc. ...
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35 views

Shemonei Esrei regarding the seasons in Divine Might

Every time I pray the Amidah, I get very hesitant regarding what season is appropriate for me to pray. I live in the southern hemisphere in a tropical climate. Therefore, we have one season dry and ...
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Why “hayom yom rishon”, not “echad”?

Rabbi Menachem Greenblatt (St. Louis, Missouri) mentioned at s'uda sh'lishis (Shabas parashas "Ki Setze" 5772) that the correct name for Sunday is echad b(a?)shabas, as is written in k'suvos and ...
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2answers
330 views

Correspondence between 365 negative commandments and days of the year?

There are 365 negative commandments which correspond to the days of the (solar) year (see Makos 23b; Tanchuma Ki Seitzeh 2). Apparently the prohibition of Gid HaNasheh (sciatic nerve) corresponds to ...
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7answers
218 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 Tanach/...
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4answers
3k 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 ...
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4answers
672 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?...
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2answers
52 views

Why is there never a break between parshiot Parah and Hachodesh?

I think Talmud Megillah mentions the various arrangements for the 4 parshiot. This year, and next, we find a break between Sheqalim and Zachor as well as a 2nd one between Zachor and Parah. I ...
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3answers
155 views

Passover duplicates on Shabbat 2 years in a row

Passover fell this year on Shabbat which is rare. It also fell last year on Shabbat. Two years in a row is incredibly rare. The question is in two parts: when has this duplication taken place ...
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1answer
650 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 ...
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2answers
195 views

Why is my molad-time chart off by a day?

The HaMaor Mikraos Gedolos chumash has a chart of molad (forecasted first visibility of the new moon in Jerusalem, based on averages observable to the naked eye, assuming Jerusalem local time; am I ...
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1answer
61 views

Is there a pattern to whether a year is full/regular/deficient? Is there an online source that lists them?

There is a pattern for leap years that follows a 19 year cycle. Is there a similar pattern for whether a year is shleimah/kesidran/chaserah? (i.e. some function that takes the year and returns the ...
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3answers
6k views

Does Passover occur on the first full moon after the equinox?

Christians claim that Jesus was put to death on Passover eve Nisan 14 they make the date for easter based on the first full moon after the spring equinox(paschal full moon) This year (2016) Passover ...
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1answer
2k 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 ...
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1answer
296 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 ...
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2answers
515 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 ...
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1answer
189 views

What Hebrew date requires the most space to spell out in a Ketubah? [closed]

What Hebrew date requires the most space to spell out in a Ketubah?
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120 views

On which day in Teveis did this happen?

In Megilas Esther 2:16 it mentions that Esther was taken in Teveis to Achasverosh's palace. Does anyone know on which day of the month this happened?
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1answer
89 views

Known birthdays

In the season of my birthday, I was wondering: Which figures, from Tanach and Sha"s, do we know the exact birthday of? I am aware of Moshe's birthday being identified as the 7th of Adar. Which other ...
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1answer
125 views

How to calculate exact Gregorian dates of the past Jewish festivals?

I'm reading a book by a Christian author which purports to illuminate some miraculous coincidence between blood moon tetrads and Jewish festivals. One thing that he does without any explanation is ...
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1answer
399 views

Where does 5774 fall in the 19-year cycle?

We are in a leap year, as indicated by the presence of Adar Bet. Leap years occur every third, sixth, eighth, eleventh, fourteenth, seventeenth and nineteenth years in the cycle. So how to tell ...
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1answer
63 views

Significance of 4 Teveis in Judaism [closed]

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 ...
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1answer
570 views

Must the first day of Nisan follow spring equinox

Looking for clarification on how ancient timekeepers set the day of Passover. I understand that it would begin on the 14th of first month of new year. I’m not clear if the new moon that starts the ...
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1answer
103 views

Can one use a different date system at the beginning of the Ketubah?

The following is an excerpt in English translation from the beginning of a traditional Orthodox and Conservative ketubah taken from this site: On the ______day of the week, the _________day of the ...
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2answers
486 views

Weekday Torah reading the same for two weeks when Yom Tov falls on Shabbat?

When Yom Tov falls on Shabbat, superseding the regular weekly Torah portion, does the Monday and Thursday weekday reading stay the same the week before and the week after the holiday? E.g., this year, ...
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2answers
113 views

Is it possible to read from 5 Parshiyot on 1 Shabbat?

On a regular Shabbat, we read from 2 parshiyot when we have a communal Torah reading -- one parsha in Shacharit and the next at Mincha. When there is a double parsha at Shacharit (such as Tazria-...