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8
votes
1answer
1k views

Does one really have 30 days to put up a mezuza outside Eretz Israel?

It is broadly known and codified that one has 30 days to put up a mezuza when renting a home outside Eretz Israel. I heard that this dated from the times where Jews might be expelled in their first 30 ...
13
votes
4answers
6k views

When can you build the sukkah?

My wife and I love the holiday of Sukkot, as do many of our friends. We build the sukkah every year and have friends over for an evening meal, preferably on Shabbes - if someone else in our group of ...
12
votes
3answers
4k views

Wearing Watches on Shabbat

What is a watch one can wear on shabbat? There are the analogue quartz watches with just one crown to adjust the time that (as far as I'm aware) most people would wear on shabbat (especially an ...
16
votes
3answers
460 views

How long can you say Asher Yotzar if you forgot?

If you forgot to say Asher Yotzar and remember a while later, is there a time limit as to when you are allowed to say it?
5
votes
2answers
2k views

Tashmish Ha-Mitah B'yom (Marital Relations by day.)

It says in Shulchan Aruch Siman 240 Sif 11 that it's prohibited to have marital relations by day unless the house is dark ("Bayis Afel".) The Rema adds that a Talmid Chacham that covers himself with ...
7
votes
2answers
2k views

Eating dairy after pareve on meat equipment?

If I eat hot pareve food that was made on meat equipment, is there a waiting period before I can eat dairy? I had always assumed so -- that the heat transfers the meatiness to the pareve food -- but ...
15
votes
3answers
2k views

Brewing fresh coffee for Shabbos with a time clock

May one prepare coffee ingredients in a brewer such as this one on Friday and set the timer to brew the coffee for 8:00 Shabbos morning?
12
votes
1answer
617 views

Where did the myth 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 ...
18
votes
3answers
673 views

Eating out Friday night of Chanukkah

If one is lighting Chanukah candles inside (for whatever reason) relying on the publicizing to himself and his family, then what should he do on Friday night if he is eating out? Must he make the ...
11
votes
1answer
957 views

Kiddush between 6 and 7 o'clock - Which clock?

Many people hold that one should not make kiddush on Shabbos between the hours of 6 and 7. (Sources: Shulchan Aruch Harav and Taamei Haminhagim, (who, in turn, bring a Maharil, a Magen Avraham, and a ...
10
votes
2answers
5k views

18 minute Matzah?

Are there sources EXPLAINING why we have to make matzah within 18 minutes? I understand having a time limit if in fact the reason we eat matzah is to reenact the speed which we left Egypt (that ...
10
votes
5answers
365 views

Waiting Between Meat & Dairy According To The Geonim

It seems as though the Geonim - although disparate and diverse in their opinions on many issues - seem to be rather united on the understanding of the Gemara on the subject of waiting after meat ...
4
votes
1answer
209 views

If you've missed Zeman Kriyas Shema, what should you do?

Suppose a fellow realizes at 9:16AM that the Gra Zeman Kriyas Shema was at 9:14 and he never said Kriyas Shema yet. Is there any gain by saying it immediately even though it is past the later Zeman ...
7
votes
3answers
118 views

Melachah on Shabbath - after Shabbath

If Melachah was done on Shabbath, can the product of that Melachah be enjoyed after Shabbath, and if so, under what criteria (does it depend on how long after Shabbath, or on the need, or something ...
13
votes
3answers
1k views

Is there a “5 second rule” for foods becoming non-Kosher?

OK so I don't actually mean a 5 second rule. But is there an amount of time that it takes for something hot that comes in contact with a non-Kosher utensil or surface to become not kosher? For ...
5
votes
1answer
241 views

Issues with starting work before Shacharis

What are the halachic issues/opinions/options regarding starting work early, i.e. before one is allowed or practically able to daven Shachris?
4
votes
3answers
815 views

how often do you have to check your mezuzot?

I heard it was twice in two years. Is that right? Where does that come from? If I have no reason to assume they became pasul do I still have to check them?
4
votes
1answer
121 views

How much time must pass before making a second beracha on the same food?

If you made a beracha on a food or drink item and you took a sampling of it, how much time must pass until the next sampling for you to be required to make an additional beracha?
11
votes
3answers
612 views

Time dilation and waiting between meat and milk

Suppose Ploni eats some meat. He then gets in a spaceship and accelerates to some significant percentage of the speed of light for a short trip into outer space, and then returns home. At the time ...
9
votes
2answers
130 views

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 ...
8
votes
3answers
664 views

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 ...
7
votes
1answer
181 views

Call for Halachic Dateline Source(s)

OK, we've got some discussion going on about issues affecting life within the gray zone of the Halachic Dateline and the International Dateline, but what is the original source of such a concept, if ...
5
votes
2answers
963 views

Alarm clock handling on Shabbos

Are you allowed to touch an alarm clock on Shabbos?
3
votes
1answer
1k views

Self-winding wristwatches on Shabbos

Can self-winding wristwatches be used on Shabbos?
14
votes
3answers
259 views

What if you undo a shabbat melacha?

If you plant a seed shortly before the end of shabbat (zoraya) and then un-bury it after shabbat, or you put an uncooked food into an oven and then take it out within seconds without it having baked (...
4
votes
1answer
1k views

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 ...
16
votes
3answers
541 views

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 ...
12
votes
3answers
637 views

Can I use a Lulav or Esrog from last year?

Suppose I'm able to perfectly preserve one (or all) of the Arbaah Minim from last year so that they are still in "mint condition." Can I use them again this year?
12
votes
3answers
438 views

Waiting six hours when chicken became meat

Poultry was once not considered fleishig. If someone had eaten chicken immediately before the rabbis decreed that poultry was fleishig, would he have had to wait his customary number of hours before ...
6
votes
1answer
3k views

How often should one have marital intercourse with his wife?

What is the frequency of marital intercourse prescribed by Halacha? I am confused as the Talmud in Ketubot 62a says that for men of independent means it is every day. But the Rambam in Mishneh ...
4
votes
2answers
220 views

(When) should skipped parts of davening be made up?

If someone skips parts of shacharit in order to say shemoneh esrei with the congregation, (when) should the skipped paragraphs be made up?
3
votes
1answer
145 views

“If you have time, say this”

I have seen in many siddurim, mainly in korbonos, the phrase "if you have time, add this parsha". How do you know if you have time? It seems obvious that if adding it would make you miss zman ...
2
votes
2answers
228 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,...
2
votes
1answer
94 views

Bentching gomel - time limit?

We recite birchat hagomel after 1. traveling over the ocean; 2. traveling over the desert; 3. recovering from a serious illness; and 4. being released from prison. (Whether other cases of salvation ...
2
votes
1answer
382 views

Source for waiting between milk and meat?

There is a widespread custom to wait 30 min between (soft) cheese and meat. What is the origin and source of this custom?
8
votes
2answers
5k views

Until what time in the morning may you eat on a fast day?

On fast days that begin in the morning, (Asara B'Teves, Taanis Esther, Shiva Asar B'Tamuz, Tzom Gedalya) if you intend to eat when you awake, until what time may you eat in the morning? Does it depend ...
8
votes
2answers
266 views

Is it true that it is 'Hiddur Mitzvah' to have the Hanukkah lights stay lit for longer?

Does it make a difference if the Hanukkah lights are lit for an hour or an hour and a half? Is it more of a 'Hiddur Mitzvah'?
7
votes
4answers
3k views

Can a woman delay going to the Mikvah?

Can a woman delay going to the Mikvah on her Mikvah night? That is, if it is the seventh day and she is scheduled to go to the Mikvah, but it turns out to be inconvenient (for example if a friend's ...
6
votes
3answers
495 views

Is there a time limit for Borei Nefashos and Beracha Me'en Shalosh?

It seems that there's a 72-minute period after eating in which one must bentch. Does this also apply for Borei Nefashos and Beracha Me'en Shalosh?
6
votes
2answers
125 views

How long does soil need to last?

If you move a tree with its soil, it's considered replanted (so the rules of orla kick in) unless it can live off of the soil you're moving it with. (Masechet Orla 1,3 see Rambam.) Clearly "if it can ...
5
votes
1answer
270 views

Does a Shomer help for Eating before Lighting?

The Mishna Berurah (672:10) says ואפילו ללמוד אסור משהגיע זמנה וכ"ש אכילה וש"ד ואפילו התחיל פוסק Even to learn is prohibited once the time of lighting Chanuka candles arrives. And all the more ...
3
votes
1answer
80 views

What constitutes “sending” Manot?

On Purim, I will drive around and deliver my mishloach manot. However, if a person is not home, I might leave the package at his door. If he doesn't arrive until days later, have I still satisfied my ...
1
vote
1answer
211 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?
1
vote
1answer
216 views

The blessing שהחינו‎ for a new wrist watch?

If you acquire a new wrist watch, do you make the blessing Sheheheyyanu?
1
vote
1answer
169 views

Bracha on Tzitzit

If one takes a nap and has the intent to put tzitzit back on, does he need to make a new bracha when he does so? Is it considered hesach hadaas (loss of concentration)? Or does his intent obviate ...
-2
votes
1answer
160 views

Is one permitted to report inflated driving hours?

In the United States, all applicants for a driver license (and permit) must have driven a certain number of hours, which varies per state. In some states the number of required hours is very high, ...