Questions tagged [time]

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“No before and after in Torah”?

Chronological difficulties are frequently explained in the Sources by the concept of אין מוקדם ומוחר בתורה -- Ein Mukdam U'm'uchar Ba'Torah -- There is no before and after in Torah. (1) Where is the ...
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64 views

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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63 views

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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225 views

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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52 views

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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90 views

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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280 views

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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137 views

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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Holidays Beginning at sundown of the previous day

I know that holidays begin at sundown the day before the date they are on. Do Jewish people begin to celebrate the holiday at sundown or on the date they are on? Take for example, Passover. Are any of ...
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238 views

I just heard that Kaddish is said for only 100 years after someone dies

I just heard that Kaddish is said for only 100 years after someone dies. Has anyone else heard this opinion and does anyone know why? This situation occurred as my grandmothers 100 yaherzeit is coming ...
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When were the decrees against the boys made?

In Parshat Sh'mot (Ex 1:15) Par'oh decrees that the boy children of the Hebrews should be killed. When was that moment in relation to the timeline of events in Egypt (the death of Yosef, the ...
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How much time do we have to perform mitzvot? [closed]

Is there a teaching that specifies how much time you have to perform mitzvot? For example, after you say the motzi, how much time do you have before you must eat a piece of bread? I am interested in ...
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90 views

Davening Mussaf at home

I seem to remember that when a person davens at home, (I remember it in connection with Yom Kipur, but maybe it's always), s/he should ensure to only start with mussaf once the kehilla has started. I ...
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Latest time to say Maariv

When is the latest time one can daven Maariv/Arvit? Is there a divergence between the letter of the law and an ideal time (לכתחילה/בדיעבד)?
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379 views

what year was David born?

According to the Jewish calendar year, what year was king David born?
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Hours for אהבה רבה on Shavuos; true or exaggeration?

In two recent shiurim I heard a story about a certain (don't remember the name) Yeshiva in pre-war Europe where they took (three?) hours to say אהבה רבה (the blessing before Shema) on the morning of ...
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755 views

Where was Abraham born?

Where was Abraham born? There are a couple of confusing, and perhaps even conflicting verses in the bible about Abraham's original homeland. The general consensus is that Abraham and his family were ...
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170 views

Custom to light yahrzeit candle on Erev Shabbos before the yahrzeit

Has anyone heard of a custom to light a yahrzeit candle not on the eve of the actual yahrzeit, but on the eve of the preceding Shabbos? I know that there are other customs for the preceding Shabbos, ...
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May one say Yehi Ratzon prayers at any time?

Take the Yehi Ratzon recited before Hamapil (at least, in my nusach ashkenaz). May one recite it in the mornings, with the rest of his tefillos during Shemoneh Esrei, for instance? Or must it be said ...
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Why in the Beis HaMikdash did the day start in the morning?

In general, the day starts at sunset. Yet, we find that in the Beis HaMikdash, the day started at sunrise (see Tosfos to Berachos 2a s.v. lisni shacharis bereisha). Is there a reason, beyond a ...
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Why is the actual length of Galus Mitzraim not mentioned in the Torah?

Chazal expound that the Jews were in Mitzraim for 210 years (see Rashi to Bereishis 42:2, and to Avodah Zarah 9a). Why is this figure mentioned nowhere explicitly, especially when other numbers are (...
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1answer
134 views

In Judaism, what prophetic event or promise to Israel took the longest time to fulfill?

In scriptures it appears that the longest time it took several prophecies to happen to Israel as a people is between 70-430 years, 430 years having been the longest recorded for fulfilment of a ...
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64 views

How long did Iyov suffer unfairly until G-d gave him blessings for resisting it?

Some relevant passages from the book of Iyov (Job): 1:1 "There was a man in the land of Uz whose name was Job, and that man was sincere and upright, God-fearing and shunning evil." 1:8-9 "Now the ...
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no shiva after finding out after sheloshim?

I interpret the shiva as also being a time for the mourner to psychologically process the loss of the deceased. If a mourner only learns about the deceased's passing more than 30 days after the death,...
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How long did Miriam wait by the river before Basya retrieved Moshe?

How long did Miriam have to wait by the river before Basya bas Paro retrieved Moshe from the box?
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How could Peretz have had children before going to Egypt? [duplicate]

וַיְהִי בָּעֵת הַהִוא וַיֵּרֶד יְהוּדָה מֵאֵת אֶחָיו וַיֵּט עַד-אִישׁ עֲדֻלָּמִי וּשְׁמוֹ חִירָה. בראשית לח:א וַתָּסַר בִּגְדֵי אַלְמְנוּתָהּ מֵעָלֶיהָ וַתְּכַס בַּצָּעִיף וַתִּתְעַלָּף ...
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Techilaso BiF'shi'ah Vesofo BeOnes by Tashlumim

SA OC 108 gives the halachos of Tashlumin: if one forgot or was unable to daven, he is able to make it up by davening the next Shemoneh Esreh twice. (This is an oversimplication, but that's the gist ...
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201 views

Circumcision exceptions on the rule?

If one gives birth to a premature/preterm son, or if the childs weight is to low, for example, would it still be circumcised on the 8th day or are there exceptions to the command?
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source in seder olam of date of dor haflaga

Where in the sefer seder olam does it say the year that dor haflaga/ generation of dispersion took place?
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60 views

For how long was it customary to wear widow's garb and did Tomor follow the custom?

Tomor became a widow while Sheloh was still young Beraishis 38 (11) . Many days passed 38 (12). Tomor took off her widow's garb 38 (14) at the time that Sheloh had grown up and later put it on again ...
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Waiting times after fleishig based on amount?

On the tzad that you wait one hour, it's based on the time it takes for food to begin digestion. Is there a difference between whether one has just a little bit of meat, which takes shorter to break ...
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How long did King David reign in Jerusalem before he brought the Ark there?

In the book of Samuel 2, Chapter 7 it says: They brought in the Ark of the LORD and set it up in its place inside the tent which David had pitched for it, and David sacrificed burnt offerings and ...
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Are there examples of backward time travel in the talmud and/or midrash?

The gemarah discusses a story where Moshe is taken to see the lecture hall of Rebbi Akiva and the midrash discusses God showing Adam ensuing generations and their scholars. I would like to know if ...
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181 views

Sources for 3 hour time limit (not Rb. Yerucham)

The main textual source for the minhag of waiting three hours between eating meat and eating milk is Rabeinu Yerucham. However, it appears to many that the "ג" in there is actually a typo and it ...
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71 views

Why are there times of prayer

There are many times of prayer. Why? Is this a teaching made to make order? Anything to do with the Cosmos? In the psalms King David also has morning prayer. Morning, afternoon, midnight, why not ...
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147 views

Waiting after meat as a minhag

I was once told in the name of R' Hamburger שליט”א that the practice of waiting between meat and milk is, for Ashkenazim, a minhag. I was told that nonetheless, as we are accustomed to wait and ...
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104 views

What is the motivation behind the obligated number of times different workers are required to fulfill their conjugal rights obligations?

In Hilchot Ishut the Rambam gives different requirements to men to fulfill their conjugal rights obligations (http://www.chabad.org/library/article_cdo/aid/952888/jewish/Ishut-Chapter-Fourteen.htm). ...