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Questions tagged [time]

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29 votes
12 answers
2k views

How can I make a long summer shabbat a delight?

Where I live, shabbat ends at nearly 10PM at the peak of summer, and I find it challenging to get to the end of that without starting to develop some negative feelings. I try to spend most of Shabbat ...
Monica Cellio's user avatar
27 votes
12 answers
4k views

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 ...
Monica Cellio's user avatar
26 votes
6 answers
5k views

Moshe's age and the timeline of the exodus

Moshe was 80 when he approached Par'o before the makos, and the makos lasted a year, so he turned 81 in the Adar before the Jews left Mitzrayim. As he turned 120 in the Adar before the Jews entered ...
msh210's user avatar
  • 73.4k
25 votes
10 answers
4k views

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?
yydl's user avatar
  • 38.6k
21 votes
3 answers
3k views

When did we start counting the Year since Creation?

This year is 5772 / תשעב (Taf-Shin-Ayin-Bet) on the Hebrew Calendar. What is the earliest reference to the Year counting from the Creation of the world?
David P. Hochman's user avatar
18 votes
4 answers
733 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 ...
Rodney Feinerman's user avatar
17 votes
6 answers
1k views

Avoiding accidentally eating cheese

Whether one waits 6 hours, 3 hours, 1 hour, or somewhere in between, it is a common occurrence to find people mistakenly eating milk/cheese/yogurt too soon after meat. It seems like a problem that ...
WAF's user avatar
  • 23.8k
17 votes
3 answers
972 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 ...
Double AA's user avatar
  • 99.8k
16 votes
4 answers
10k 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 ...
Goodbye Stack Exchange's user avatar
16 votes
3 answers
693 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?
Gershon Gold's user avatar
16 votes
1 answer
306 views

Out-of-order minyan participation

Some shuls have several minyanim back to back. If one arrives before the Torah reading of the 8:30 minyan and has finished davening before the Torah reading of the 9:30 minyan (to whose Kedusha one ...
yoel's user avatar
  • 7,281
16 votes
1 answer
952 views

Time-frame for naming a newborn girl

I have heard many differing Minhagim as to the time-frame for naming a newborn girl. There are those that name at the first possible opportunity and some that wait till the second Shabbos. Many others ...
Gershon Gold's user avatar
15 votes
3 answers
4k 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?
Gershon Gold's user avatar
15 votes
4 answers
480 views

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 ...
DanF's user avatar
  • 70.7k
15 votes
2 answers
327 views

How is the story of the Torah being given told in the Torah itself?

How was the Torah (aka the Five Books of Moses) given if the story of the Torah being given is contained in these books? In other words, the Torah tells the story - close to halfway through it - of ...
CodyBugstein's user avatar
  • 1,356
15 votes
4 answers
491 views

Intentionally using a grace period on a rental

I recently rented a bike for a few hours, and the person in charge of the rental told us that we have "X number of hours, and a 15 minute grace period," followed by the warning that if we don't return ...
MTL's user avatar
  • 19.1k
14 votes
3 answers
312 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 (...
not-allowed to change my name's user avatar
14 votes
1 answer
199 views

If kings get up at 3 hours past sunrise, wouldn't they need some extra time to say Shma?

Mishna Brachot 1:2 gives the times for saying Shma in the morning. מאימתיי קורין את שמע בשחרים: משיכיר בין תכלת ללבן; רבי אליעזר אומר, בין תכלת לכרתן. עד הנץ החמה; רבי יהושוע אומר, עד שלוש שעות, ...
Scimonster's user avatar
  • 23.2k
13 votes
2 answers
1k views

Why 1,000 generations of ungiven Torah, not X years?

The Mainz Anonymous reads, in part (in my own translation): He created the Torah 974 generations before the world was created, then twenty-six generations [passed] from the creation of the world ...
msh210's user avatar
  • 73.4k
13 votes
2 answers
1k views

Why only on the first Saturday night of Selichot is the minhag to start at midnight?

Pretty self explanatory. Some say at chatzot all week and some in the morning. Why davka on the first night does everyone say at night? This minhag does not seem apply on the second Saturday night (...
Double AA's user avatar
  • 99.8k
13 votes
3 answers
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 ...
jim's user avatar
  • 878
12 votes
3 answers
691 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 ...
Daniel's user avatar
  • 24.9k
12 votes
2 answers
2k views

Source for not eating Matzah prior to פסח?

Thanks to this question I am compelled to ask: What is the source for not eating Matzah prior to פסח? Is there a source for not eating it for 30 days prior?
Seth J's user avatar
  • 41.7k
12 votes
3 answers
1k 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?
yydl's user avatar
  • 38.6k
12 votes
1 answer
1k views

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 ...
Aaron's user avatar
  • 11.2k
12 votes
3 answers
6k 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 ...
930913's user avatar
  • 465
12 votes
2 answers
281 views

Referencing Iron before the Iron Age

A guest brought up this question at the shabbos table, and no one had an answer. In D'Varim 8:9 it says "...a land whose stones are iron...". The question this guest asked was: How is it that the ...
shachna's user avatar
  • 1,105
12 votes
3 answers
863 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 ...
Clint Eastwood's user avatar
12 votes
2 answers
168 views

Liability of substitute

If someone has an appointment, and arranges for a babysitter to come to watch his/her children while he/she goes to the appointment, and the babysitter doesn't show up, so the parent misses the ...
user613's user avatar
  • 2,413
12 votes
1 answer
499 views

Rishonim saying Ester took place during the second bayis

Elsewhere on this site, avi cited sources to the effect that, contrary to the Bavli (M'gila), the events recounted in the book of Ester took place after the second bes hamikdash was built. Do any ...
msh210's user avatar
  • 73.4k
11 votes
3 answers
327 views

Why do siddurim and Shulchan Oruch OC start with Shacharis?

Why do siddurim and Shulchan Oruch OC start with the morning? Since the day starts with night, they should start with Maariv as does the mishnah.
Avrohom Yitzchok's user avatar
11 votes
3 answers
739 views

Rav Moshe and Giving Your Time for Charity

I recall hearing that Rav Moshe Feinstein rules that one should donate a tenth of his time to learn with other Jews, in addition to the more commonly accepted 'tithe' of money. The only source I was ...
Salmononius2's user avatar
  • 6,803
11 votes
2 answers
670 views

Moshe Rabbeinu's knowledge of future events

If Moshe Rabbeinu was taught the entire Torah on Mt. Sinai (Rashi on Vayikra 25:1, Rambam), how do we explain events such as the incident involving the Bnos Tzelafchad (Bamidbar 27:1-11), or the tamei ...
Dave's user avatar
  • 21.1k
11 votes
1 answer
1k 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 ...
HodofHod's user avatar
  • 21.1k
11 votes
1 answer
560 views

Group coordination for a siyum

My understanding is that a siyum should be made on the last bit of the text being studied. Thus, if the entire Mishna (all six "orders") is studied for someone's yahrzeit, the last mishna (individual ...
msh210's user avatar
  • 73.4k
11 votes
2 answers
2k views

Using an oven timer on Shabbas

This is my first post here. I'm fairly familiar with cooking on Shabbat, but I have a few specific questions. I know there are issues with using the warming setting on an oven to keep food warm. ...
PinteleYid's user avatar
11 votes
2 answers
194 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 ...
DanF's user avatar
  • 70.7k
11 votes
1 answer
2k views

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 ...
Jake's user avatar
  • 1,422
10 votes
4 answers
455 views

Getting a head start on Shnayim Mikra

(Inspired by this question) Can one get a head start on Shnayim Mikra? Would it count if someone either started early (perhaps during the weeks with no Sedra in Tishrei), or just had some spare time ...
Seth J's user avatar
  • 41.7k
10 votes
1 answer
2k views

How did Jacob manage to have 12 children in 7 years?

Did Leah manage to have 6 sons and 1 daughter in the space of 7 years or was it over a longer period of time? In general it seems difficult to fit all of Ya'akov's children into a 7 year period. ...
Elie Steinbock's user avatar
10 votes
2 answers
6k 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 ...
morah hochman's user avatar
10 votes
3 answers
1k views

Delaying using the toilet

According to Gemara Makkot 16b, the phrase in Vayikra 20:25 ... and do not make your souls disgusting - וְלֹא תְשַׁקְּצוּ אֶת נַפְשֹׁתֵיכֶם is a command not to hold in the urge to urinate or ...
Michael Sandler's user avatar
10 votes
2 answers
303 views

Give ma'aser on money that you didn't make yet?

Can I give ma'aser on money that I didn't earn yet but I know I will be earning in the future?
N123's user avatar
  • 2,883
10 votes
2 answers
657 views

No mitzvah to wear tefillin every day?

I heard that the Bet HaLevi and the Peri Megadim hold that there is no Mitzva for a person to don Tefilin everyday. Can someone source these opinions and explain exactly what they are meaning to say?
Hacham Gabriel's user avatar
10 votes
5 answers
499 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 ...
user avatar
10 votes
1 answer
675 views

Which modern-day fruits require Shehechiyanu?

According to my understanding (and please, correct me if I'm wrong), the Bracha of Shehechiyanu (שהחינו) on fruits [and some vegetables?] is recited the first time one partakes of a particular ...
yydl's user avatar
  • 38.6k
10 votes
1 answer
625 views

Davening schedule for someone with a night shift

The only way I can really convey what I'm asking here is to tell a [fictitious] story: Chaim Yankel is a late-hour delivery driver for a company. Since he works before daybreak, his schedule is much ...
ezra's user avatar
  • 18.8k
10 votes
3 answers
569 views

Wearing a gold watch on shabbos without an eiruv

The halocho is a person may wear jewellery in the street on shabbos without an eiruv provided the reason why he is wearing it is for the adornment of it and not some other use. Therefore the poskim ...
Yehuda's user avatar
  • 6,034
9 votes
5 answers
10k views

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. ...
Monica Cellio's user avatar
9 votes
3 answers
1k 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 ...
Yehoshua's user avatar
  • 16.1k

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