Questions tagged [time]
For questions relating to time.
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What is the order of the Great Hallel (Hallel HaGadol)?
Psalm 136, the Great Hallel (Hallel HaGadol), is a series of praises of Hashem. It is ordered starting with the wonders of creation, moving onto taking us out of slavery, followed by the miracles ...
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Proper day and time for a Shloshim Seuda
Per Chabad.org: "Traditionally, families gather on the eve of the Shloshim to share support, recite prayers and Psalms, and to give charity in the merit of the deceased. Many will also make a Siyum, ...
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Is it forbidden to use a sand timer on shabbos?
Everyone I know seems to say that using a sand timer (hourglass) on shabbos is forbidden. The question is why? Is it because of sifting? Is there some other melacha involved? Is it actually forbidden?
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What is the source of the teaching that Hashem, unlike humanity, perceives time continuously?
I recall once reading a passage that discussed divine perception of reality. The idea was something like this: Humans blink their eyes, and so do not see everything that happens in time. Hashem, ...
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Significance of Torah day starting at sunset, vs secular day starting at sunrise
This is a very general question, and I hope for some general answers. However, in order to focus it, I would like to specify one point.
In the secular world, the day starts with "waking up" ...
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Does very fast public prayer demonstrate lack of respect for G-d?
Prayer is a human being speaking to Hashem. I would think that this speech should be done in a respectful way.
Therefore I ask if the sources (or validated reports) refer to the concept of very fast ...
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Mitzvah to learn “day and night” - what are the time parameters?
The Rambam writes in Hilchos Talmud Torah:
כָּל אִישׁ מִיִּשְׂרָאֵל חַיָּב בְּתַלְמוּד תּוֹרָה בֵּין עָנִי בֵּין עָשִׁיר בֵּין שָׁלֵם בְּגוּפוֹ בֵּין בַּעַל יִסּוּרִין בֵּין בָּחוּר בֵּין שֶׁהָיָה ...
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When is learning "done"?
I learn with a group of people each week and we take turns leading. I need a lot of time to prepare and usually start a week in advance. I read and review multiple times during the week. If I am ...
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Daniel 7:25 reads "He will think of changing the times..." What does it mean? And how does it correlate to history?
In Daniel 7:25 it reads:
"He will think of changing the times..."
I wonder: What does it mean? And how does it correlate to history?
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Why are women exempt from (many) time-bound mitzvot?
Women are generally exempt from time-bound mitzvot (Kiddushin 29a). I have heard two reasons for women being exempt from time-bound mitzvot and both seem problematic, so either there are additional ...
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'Rega' in halacha
King David uses the word 'Rega' ( moment) in his Tehillim.
Rambam, the Gemara etc. also use the word 'Rega' to describe a moment.
Can we assume that all the previously mentioned speakers are using the ...
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Does the one-year rule regarding Milchig and Fleishig pots apply to non-Kosher vessels?
According to Ashkenazi tradition, "If a meat/milk pot hasn't been used for a year+, it may be used as the other type without Kashering".
If I have a ceramic coffee mug that may or may not have ...
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Many-worlds interpretation (MWI) interpretation of quantum mechanics [closed]
There is a well known and popular interpretation of quantum mechanics known as the Many-worlds interpretation (MWI) interpretation of quantum mechanics.
It says that, "... all possible outcomes ...
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Time runs quicker before the Messiah comes; source?
I remember hearing that the Talmud says that before the Messiah comes, events will occur with decreasing gaps between them as if time was running faster than usual.
Where is this stated?
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What is the point of revealing the end of time to Daniel only to conceal it?
The book of Daniel chapter 12 seems to provide Daniel with information related to the end of time only to then instruct Daniel to keep the information secret (12:4). Daniel then asks when the end of ...
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Concept that time is a spiral
I've heard that there is a concept in Judaism of time in a spiral, but I'm not sure where that idea originally comes from (specifically, which Rabbi originally said it). The earliest I've found is Rav ...
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Blessings on Birthdays
There is apparently a practice among contemporary Jews of giving out blessings on one's birthday. Is there any source for this in the Jewish tradition?
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How long was Yosef in prison?
We know from Gen 37 that Yosef was 17 when he went out to meet his brothers and ended up on the way to Egypt, and we know from Gen 41:46 that he was 30 when Paro appointed him as second in commend. ...
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What is the meaning of יוֹם (yowm) in Bereshit?
I've heard conflicting reports of how the creation days' יוֹם (yowm), in Bereshit are interpreted in the Jewish community. How do actual Hebrew scholars define day in Bereshit? Six 24 hour periods or ...
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If Iyov 2:1 states HaYom occurs in Heaven before HaShem, does Laylah also occur in Heaven?
Understanding "Ha-Yom" in [Iyov 2:1] raises questions about the occurrences of Yom and possibly Layla in Heaven.
Now [The-Day] came about that the divine beings presented themselves before ...
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Is there a halachic time limit for sending an organization its charity box money?
Many Jewish organizations distribute tzedaka (charity) boxes. A few that I know tell people, "collect the money and at some point, empty the money and mail us a check."
Let's say someone leaves this ...
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what year was David born?
According to the Jewish calendar year, what year was king David born?
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What took 8 days
What took the Jews 8 days to produce new oil when rededicating the Temple in the Chanuka story? It seems the process of oil-making takes a lot less time (I have done it in Israel on one of the tourist ...
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Importance of coming on time for davening
I'm looking for sources/inspiration about the importance of coming on time for davening. Not about being in the first ten, but just being there on time time. The more the better. Any help would be ...
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How many time-bound positive mitzvot are women obligated in?
Women are generally not obligated in positive mitzvot bound by time. There are some exceptions, such as eating matzah on Pesach and making kiddush on Shabbat. What other time-bound positive mitzvot ...
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Hourly timeline for the Exodus
In order to get an idea of what it was like to have participated in the Exodus, I would like to see an hourly timeline for the process, starting after noon on the 14 Nissan 2448. The timeline should ...
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Where does the notion that the *entire* matza process must be done in under 18 minutes come from?
I've been going over the halakhoth for baking matzah, and even though I hear from almost every Rabbi I've asked that the entire process must be done in under 18 minutes, I can't find any evidence for ...
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Time Travel and Judaism
Has time travel ever been discussed before in terms of Judaism? According to Judaism would (should) it be possible to travel through time?
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Quality of Sh'ma repeated in its proper time
Often, I find myself at a ma'ariv minyan that meets before "nightfall" and someone invariably makes the announcement that we should all remember to repeat the sh'ma after tzeit hakochavim. I ...
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Why is the total count of Noah's life 950 years when the year of the flood took a full year cycle?
The Posuk says that Noah was 600 years when he went into the Teivah (Bereshit 7:6,11). Rashi (Bereshit 8:14) and the rest of the Mefarshim say that the flood took an entire year to complete. The Posuk ...
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Ein Kamocha on Shabbat
Before the Ark is opened on Shabbat, we don't just say "veyahi b'n'so'a ha'aron" as we would on a weekday. We begin with Ein Kamocha. The Artscroll siddur (I don't have the page number handy) explains ...
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Earliest Sources for Giving Maaser of Time
Rav Moshe Feinstein writes in a teshuva (EH 4:26:4) that one must give a tenth of his time for others the same way one should give a tenth of his money. What are the earlier sources for such a concept?...
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How long was Shimon in prison?
In Bereishit 42:24 Shimon is taken away from the brothers and put in prison as surety so that the other brothers will bring back Binyamin to prove that they are not spies. The brothers then return to ...
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Havdalah before the proper time [closed]
The Gemara Berachos 27b talks about making havdalah before the end of Shaabos:
רַבִּי יֹאשִׁיָּה מְצַלֵּי שֶׁל מוֹצָאֵי שַׁבָּת בְּשַׁבָּת: אוֹמֵר הַבְדָּלָה עַל הַכּוֹס אוֹ אֵינוֹ אוֹמֵר הַבְדָּלָה ...
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“Pray at the same time as the community”- refers to the Amidah. Source please
Shulchan Arukh, Orach Chayim 90 prescribes that someone davenning alone should synchronise his prayers with the community:
ישתדל אדם להתפלל בב"ה עם הציבור ואם הוא אנוס שאינו יכול לבא לב"ה ...
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How accurate do I have to be in performing mitzvos to time?
We can now measure time more accurately than in the past (see this question). What are the implications? I do not ask about situations where the time is critical for a Torah law where obviously one ...
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How do we know that the Judaic calendar should be primarily lunar based?
There is nowhere in the Torah that specifically mentions that the calendar cycle is to be based mainly on a lunar cycle. (I'm intentionally omitting the notion of the solar / seasonal influence of ...
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How hungry does a Jew have to be to eat non-kosher food?
I understand that Jews are allowed to eat non-kosher food in order to save their lives, source Sanhedrin 74a.
My question is, how long does a Jew have to be deprived of food, before he or she is ...
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How many days are there in each year of the 304th Metonic cycle? [closed]
I need the number of days per year for my continuous Hebrew calender.
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Talmud study and time? [closed]
For how long must one study the Talmud in order to have a great understanding of it.
Of course, some would use more time than others but there must be a general answer?
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Meaning of "Shabbatot" when it's translated as "weeks"
Vayikra 23:15 translates the word Shabbatot as 'weeks', weeks that are to be Temimot (compleet/perfect);
Normally this would be from Yom Rishon till Shabbat like in the phrase:
'Yom rishon l'...
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Chatzi LaHashem
I've been having this discussion with my friends and family about the Halacha of dividing Yom Tov into Chatzi LaHashem (half of the day devoted to prayer and learning) and Chatzi Lachem (half of the ...
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When Tana"ch uses the phrase "until today" what does it mean?
There are numerous places where Tana"ch uses the phrase "עד היום" or "עד היום הזה" ("until\to this day"). Usually, this phrase is used regarding the names of cities, towns, etc. - occasionally, such ...
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Do traditional sources address how time “works”?
I’m sorry for such a convoluted question, but this has been bothering me for some time now. While the title isn’t quite accurate, I couldn’t think of a better way to phrase it - feel free to edit if ...
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"No before and after in Torah"?
Chronological difficulties are frequently explained in the Sources by the concept of אין מוקדם ומאוחר בתורה -- Ein Mukdam U'm'uchar Ba'Torah -- There is no before and after in Torah.
(1) Where is the ...
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Source of a story about Rav Salanter and limited time to learn Torah
Is there an authentic source for the below story?
The story is told of a man who asked Rabbi Yisroel Salanter a question. "Rebbi, I have only 15 minutes a day to learn Torah. What should I study?" ...
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Angels saying Shirah before Hashem - "daily" rituals?
Rashi on Gen 32.27
כי עלה השחר. וְצָרִיךְ אֲנִי לוֹמַר שִׁירָה בַּיּוֹם (חולין צ"א):
כי עלה השחר FOR THE DAY BREAKETH, and I have to sing God’s praise at day (Chullin 91b; Genesis Rabbah 78:1).
...
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How many ‘Watches’ were there in an ancient Hebrew day?
A few mentions in the scriptures point to the existence of night and morning ‘watches,’ a notable example being Gideon’s arrival at the Midian camp in the middle watch. (Judges 7:19)
Another example ...
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Blatant foreshadowing in the Torah
Genesis 13:10 has the following verse:
וַיִּשָּׂא־ל֣וֹט אֶת־עֵינָ֗יו וַיַּרְא֙ אֶת־כָּל־כִּכַּ֣ר הַיַּרְדֵּ֔ן כִּ֥י כֻלָּ֖הּ מַשְׁקֶ֑ה לִפְנֵ֣י ׀ שַׁחֵ֣ת יְהוָ֗ה אֶת־סְדֹם֙ וְאֶת־עֲמֹרָ֔ה כְּגַן־...
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Sleeping between meat and milk
I have heard in the name of the Chasam Sofer that if one sleeps after eating meat that they can be lenient in the amount of time one would normally wait between eating meat and milk. Is this written ...
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