Questions tagged [time]
For questions relating to time.
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Latest time for morning Sh’ma
What are the opinions for the absolute LATEST time for reciting the morning Sh’ma B’dieved, not l’chatchila. Obviously there are different opinions for what is the latest or not but what are they. ...
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Are there time parameters for when 10 people have to combine for Shemone Esrei?
Say you have a minyan, and when the Chazzan starts Shemone Esrei, 8 of the others are up to that point and begin as well, but the others aren’t yet up to Shemone Esrei. Is that a problem for the 9 ...
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Feast of achashverosh connected to failed 70 year prophecy
What is the source where it actually mentions that one of the reasons for the feast of Achashverosh was celebrating the "failed" prophecy of Yirmiyahu?
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Tosefes yom tov: What's the maximum amount of time which can be added onto the end of Yom Tov?
The concept of tosefet Yom Tov lets us voluntarily extend the duration of Yom Tov past the time when it would normally end.
What's the maximum amount of time which can be added onto the end of Yom Tov?...
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What does it mean that judgement happens on Rosh Hashanah?
What does it mean that G-d judges people on Rosh Hashanah, if G-d is 'outside of time'?
It's one thing to say that G-d performs an action (e.g. sends the Maan, talks to a prophet) that has a ...
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If something was unusable/unavailable when I made "early shabbos", does it become muktzeh?
Normally an object is defined as muktzeh if, at the time Shabbos started (let's call it "dusk"), it was unusable. If an apple was on the tree at sunset and falls off the tree two hours later,...
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What are some Resources for Learning About Zmanim?
I'm interested in learning more about Zmanim, specifically, the different calculations involved and how to determine these times. I understand that the calculation of Zmanim can be complex, changing ...
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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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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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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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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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'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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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 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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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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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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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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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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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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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 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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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 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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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?" ...
user17319
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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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"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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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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Time as a Spiral
@PixelArtDragon asked what rabbi originated the idea that time is a spiral. @PixelArtDragon said that the earliest they've found is Rav Natan Breslov who lived from 1780-1844 - can anyone locate that ...
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18 × 4 is not 72
MyZmanim says:
According to most Poskim, it takes 18 minutes for an average person to walk a distance of one mil, and therefore 72 minutes to walk 4 milin.… Others say it takes 22.5 minutes to walk ...
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Do we use a fixed clock interval or the Sun to define the concept of "day"?
Follow up on the Earth stopping rotation question.
What if instead of stopping, the Earth simply slowed down or sped up its rotation rate (as it has, historically)?
Do we halachically count a ...
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If Earth stopped rotating, would we keep Shabbos?
A hypothetical question, but perhaps nonetheless illustrative of underlying principles : If by some method, humanity [or some non-human force] managed to stop the rotation of the Earth around its axis,...
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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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Asymmetry of R. Meir's times to inspect tzara'at (Nega'im 2:2)
Nega'im 2:2:
אֵין רוֹאִים הַנְּגָעִים בַּשַּׁחֲרִית וּבֵין הָעַרְבַּיִם, וְלֹא בְתוֹךְ הַבַּיִת, וְלֹא בַיּוֹם הַמְעֻנָּן, לְפִי שֶׁהַכֵּהָה נִרְאֵית עַזָּה. וְלֹא בַצָּהֳרַיִם, לְפִי שֶׁעַזָּה ...
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How long must a grave remain a grave?
I was recently reading an article which suggested planting trees over graves which made me think of this question...
How long does Jewish law require a grave to remain as a grave for the original ...
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Why did Ralbag's commentary to Leviticus take so much longer than the other books of the Torah?
At the end of each book in his Commentary to the Torah, Ralbag gives us the date he completed it.
At the end of the book of Genesis he tells us that it was completed in October of 1329:
והנה היתה ...
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When to light yom tov candles?
At what time should one light the candles on (the first night of) yom tov?
On yom tov it is permitted to light a fire from a pre-existing flame (unlike shabbat) so it seems like one could light yom ...
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Time-related Mitzvot - much more obligation than Ptur
The Mishnah in Kiddushin 1, 7 says:
"וְכָל מִצְוַת עֲשֵׂה שֶׁהַזְּמָן גְּרָמָהּ, אֲנָשִׁים חַיָּבִין וְנָשִׁים פְּטוּרוֹת. "
And every positive commandment that is time-dependent, men are ...
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Birchas Hachama and the world being created in Tishrei
Birchas Hachama is said once every 28 years. According to Wikipedia it is said when the sun has returned to ts original position when the world was created.
Jewish tradition says that when the Sun ...
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Use of "חלק" measure of time in Halachah
"חלק", being a 1/1080 part of an hour, is used in calculating the New Moon.
Rambam in הלכות קידוש החודש mentions that the original tradition of calculating the New Moon was forgotten and the system ...
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Shortened Birkat Hamazon
I see mentions of a short version of Birkat Hamazon ("Birkat Hamazon Hakatzar"). R Yitzchak Abadi wrote one "based on the Rambam and other Rishonim", R Yosef Eliyahu Henkin is mentioned here as having ...
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Iggeres Hagra - heavy falls light rises
What exactly is the comparison between time being a traitor and a scale that GRA is making?
והזמן בוגד והוא כמאזנים יגביה הקל וישפיל הכבד
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Can you fly from American Samoa on Friday evening to Upolu? (30 minute flight, 24 hour difference)
Firstly I'd like to point out if you Google "Samoa" and "Shabbat" you would find many articles from 2011 that were referring to a time where Samoa changed the day of Saturday, it happened only once ...
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Timeline of the events in the midbar
I'm looking for a timeline that explains when the events in the midbar (or sefer Bamidbar) happened or at least in what order they happened in. E.g. The story of Miriam, the spies, Korach, the giving ...
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Is there a formal prohibition of stealing time from someone?
Is there a formal prohibition of stealing time from someone?
For instance, making an appointment and coming late? Or telling someone to come 30 minutes before the start of an event to ensure he will ...
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The forgetful Shomer
With regards to some of the mitzvos(shema,sefirah,Chanukah lighting) one cannot sit down to a set meal until he completes the mitzvah once a certain time comes (30 min before shekiah or tzeis -its a ...
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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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