Questions related to different times of day as they apply to Jewish Law.

learn more… | top users | synonyms (2)

6
votes
0answers
39 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 ...
9
votes
6answers
4k views

When is the latest time you can daven minchah bedieved?

If you realized that you didn't yet daven minchah and it's past shekiyah, when is the latest that you can begin praying the Amidah? I'm looking for different people's cutoffs.
1
vote
0answers
16 views

Saying Hallel Before Nightfall on the First Night of Pesach

In Shulchan Oruch Orach Chayim Siman 487 Sif 4 it is brought the minhag of saying Hallel in shul the first night of Pesach בליל ראשון של פסח גומרים את ההלל בצבור בנעימה בברכה תחלה וסוף ובן בליל ...
0
votes
0answers
17 views

Seudah Shlishit on Shabbat Pesach [duplicate]

I read in a local yeshiva's Pesach davening schedule a paragraph that says, "Se'udah Shlishit must be completed by 4:50 PM". The yeshiva is in the New York City area. The timing is significantly ...
9
votes
4answers
431 views

Hours, minutes, and chalakim

On Shabbat preceding Rosh Chodesh, the time of the molad is generally announced in units of hours, minutes, and chalakim. However, minutes are not a traditional Jewish unit of time; rather hours are ...
2
votes
0answers
25 views

Latest time for various parts of korbanot

During the week, I often say korbanot after davening, generally in the car driving to work (there's not enough time in the car on the way to shul, and this way I have an uninterrupted block of time). ...
5
votes
0answers
49 views

R Yonah's position about saying Hashkiveinu before nightfall

The Talmud (Berachot 8b-9a) tell us that the Halacha is according to the opinion that, at least if forced to, one can fulfill his obligation for the night time reading of Shema after dawn before ...
6
votes
4answers
323 views

In an average shul, how long before sunset does a combined weekday Mincha/Maariv service start?

Many shuls worldwide run combined weekday Mincha/Maariv services. How long before sunset do these services tend to start? Please specify a range, measured in "number of minutes". Also, please cite ...
1
vote
0answers
57 views

time of kriat shma change nowadays

The time of kriat shma is learned basically from the pasuk "בשכבך ובקומך", meaning the time people sleep and the time people wake up. 2000 years ago people acted according to the daylight. Nowadays ...
2
votes
1answer
41 views

What time does shabbat start medioraita ( so issur of doing melakha = torah prohibition)?

I believe that shabbat, per the torah, doesn't actually start at Shkia and that this convention is a gezera to avoid a makhloket of the real start time. What are there parameters of this discussion? ...
3
votes
1answer
292 views

eating before kiddush

Is there any time in the early morning on Shabbat in which I can eat and drink something without any question of it being considered eating before davening and kiddush? For example, at 3, 4, or 5 ...
3
votes
0answers
20 views

Time for evening prayer when flying eastward over Greenland and the sun doesn’t set?

(This is the “return" question for my question on the right time for shaharis when encountering sunrise twice in a day) In the summer, when flying from the East Coast to Tel Aviv on an afternoon ...
12
votes
1answer
482 views

Time for morning prayer when flying over Greenland and seeing the sun rise twice

Last year I flew from Tel Aviv to Los Angeles. The flight leaves at night (1am) and, in the winter, lands when it is still night (630am). However during the flight, over Greenland, one sees the sun ...
17
votes
4answers
3k views

Fast days and time zones

If I fly westward on a fast day, and travel through one/several time zone/s, thereby going back in (clock) time, must I then fast until it ends in my current time zone? What if I fly eastward, thereby ...
5
votes
2answers
727 views

Calculating shabbat candle lighting time

Is it possible to calculate the candle lighting time based on location and date alone? Assume all you have is a GPS, a watch and a calculator.
0
votes
0answers
10 views

Why do all non-Torah-based fast days except Tish'a B'Av begin only at sunrise? [duplicate]

Yom Kippur is the only fast day explicitly mentioned in the Torah (i.e. - first 5 books). The others are rabbinical. Except for Tish'a B'av which begins at sunset of the 8th of Av, the others begin ...
8
votes
1answer
163 views

Said Kiddush Levana prior to three days after Molad - Does he say it again?

Be'er Hataiv 426:10 says that one can say Kiddush Levana as early as 3 days after the Molad. The Rambam - Hilchos Brachos 10:17 rules that one may say Kiddush Levana immediately after the Molad. ...
7
votes
1answer
210 views

A Jew is born in space. What time rules does he follow?

I know that the title sounds like a sequel to a TV show (Lost in space). But based on a statement in this article : The Rabbis therefore rule that a person should continue to follow the time ...
4
votes
1answer
137 views

Alarm clock in place of a shomer

There is an idea that one can an appoint a shomer (guard) to daven maariv (shma) and some achronim extend this idea to lighting the menorah. What this does is allows one to do work and eat something ...
11
votes
1answer
391 views

Halachic Justifications for the Amshinover Rebbe

The current Amshinover Rebbe in Bayit Vegan, Jerusalem is known in the Jewish world as a man of great piety and for his great knowledge in Torah. He is also known to keep very different "Zmanim"- ...
6
votes
1answer
59 views

Pray hurriedly as soon as time comes for mincha/maariv arrives or wait but pray with more kavanah

Suppose one works in a non-Jewish office environment with rooms that can be used for prayer. Should one wait till one arrives at home and pray Mincha there at leisure or do it at work earlier when ...
2
votes
3answers
137 views

Why do we still blow shofar during mussaf?

The gemarah (rosh hashana 32b) asks why we wait until mussaf to blow the shofar and answers that the ruling enemies of the Jews mistook the shofar sound for a rallying war cry and forbade it. They ...
4
votes
0answers
49 views

Davening mincha after shkia (during “bein hashmoshos”) [duplicate]

I am familiar with the fact that there is a maklokes between poskim if one may daven mincha after shkia during "bein hashmoshos" (however long or what time one holds that to be.) However the opinions ...
2
votes
0answers
26 views

What is considered to be night?

I have always understood the definition of "night" ("leilah") when the day is for sure over and we've passed through "bein hashmoshos" completely, is when there are 3 visible stars and "hiksef elyon ...
8
votes
2answers
160 views

Determining times of Halachic import on a long flight

If I'm taking a long flight on an airplane on a day when permitted activities change at a certain point, e.g. with the start or end of a fast day, or with the start of the chametz prohibition kicking ...
3
votes
1answer
46 views

What prayers might be permissible or not permissible to pray before dawn?

I have a question that is similar to this one, but a little different. Like many people, I have a job that I currently have to be at (with location and time of year factored in) at around dawn. Hence, ...
13
votes
2answers
488 views

Polyphasic Sleep and Halacha

I recently read an article on polyphasic sleep and I'm quite interested in experimenting with it. The article advises the Uberman approach which advocates 20-30 minute naps every four hours, meaning ...
2
votes
1answer
63 views

Start time of Jewish holidays: Exactly at sunset or some other time near it?

It's my understanding that Judaism defines the start of a day as sunset. However, on one of my calendars, several Jewish holidays are indicated as starting at sundown (approximate). Does the Jewish ...
2
votes
1answer
87 views

Do any Chasidim still accept Shabbos according to Rabbeinu Tam zman?

Apparently there is a story that Rav Moshe Feinstein asked the Satmar Rebbe to not have his followers begin shabbos with zman Rabbeinu Tam. Is there still a minhag amongst chasidim to take on shabbos ...
3
votes
1answer
141 views

Is it mandatory to eat before solar noon on Rosh Chodesh?

"A person should make sure to eat before the sixth hour on Shabbos, since it is forbidden to fast on Shabbos". --A column by Daniel Yaakov Travis, citing Talmud Yerushalmi, Taanis 3:11. During ...
6
votes
1answer
76 views

Arvit/Maariv “after” Birkot HaShachar?

Generally one prays Arvit before Chatzot HaLayla; Also, one can say Birkot HaShachar as soon as right after Chatzot HaLayla (as far as I understand). I came across a "logical hole" that I can't find ...
2
votes
1answer
143 views

Rambam, Shkiah, and Tzet HaKokhavim

In the dispute between the Geonim and Rabbenu Tam over the definition of nightfall, I have seen the Rambam claimed by either side - each claiming that in the Mishneh Torah he held like them. My ...
1
vote
0answers
61 views

What time does a bar mitzvah come into effect?

At what halachic time does a boy having his bar mitzvah become chayav b'mitzvot? It seems to me that the most likely times are either shkia or tzeit.
-2
votes
2answers
128 views

Can not obeying a Gentile's opinion of Shabbat time cause a Chilul Hashem?

My understanding is that Chilul Hashem - desecrating G-d's name can be caused when Gentiles have a negative opinion about Jews from observing wrong behavior, even if the behavior may be halachically ...
9
votes
2answers
3k views

Davening on Plane Zmanim

How do you know when to daven Shachris on a plane?
2
votes
1answer
80 views

What is the difference between Sfardic and Ashkenazic calculations for the last time to eat chametz?

My community's luach (calendar) has 2 separate times for the last time to eat chametz on Erev Pesach: 10:09 for Ashkenazim, and 10:13 for Sephardim. How are these times calculated according to the ...
1
vote
0answers
63 views

Minyan, netz hachomah, and precision in time

There are halachic sources that discuss the importance of davening shemona esrei at netz (at sunrise), some of which state that it is preferable to daven at netz over davening with a minyan (at least ...
3
votes
1answer
236 views

Timing of Maariv / Havdalah at the end of Shabbos

Is it required that all elements of Maariv / Havdalah at the conclusion of Shabbos come after dusk, or may some part come between sunset and dusk?
1
vote
0answers
63 views

Which “shita” did the 5 rabbis in the Haggadah follow regarding the earliest time for morning Shema?

This section from the Haggadah: Pesach Haggadah, Magid, Story of the Five Rabbis 1: מַעֲשֶׂה בְּרַבִּי אֱלִיעֶזֶר וְרַבִּי יְהוֹשֻׁעַ וְרַבִּי אֶלְעָזָר בֶּן-עֲזַרְיָה וְרַבִּי עֲקִיבָא וְרַבִּי ...
2
votes
1answer
64 views

Which Rishonim held of shkia/tzeis according to the zman of Rabbeinu Tam?

Which Rishonim held of shkia/tzeis according to the zman of Rabbeinu Tam? Ive heard the Shulchan Aruch (rishon/acharon) held of it, did he pasken like for starting shabbos?
5
votes
1answer
243 views

Is there any evidence of time-zones in Talmud? (Tanaim and Amoraim only)

There are many verses in the Talmud, Midrash and Siddur that state that the sun and moon rise and set through gates in the firmament. This would imply that there are no time-zones. To this world view ...
5
votes
3answers
164 views

Flying During Channukah Candle Lighting

Obviously you cannot light candles on a plane, so if you can't light candles within the time frame is there any other activity one could do, which is permissible on an airline, that would fulfill the ...
3
votes
1answer
63 views

Zmanim in Space [duplicate]

If an astronaut is in space, how does he or she determine what time to pray? Does it revolve around where the spaceship is in relation to the sun, or does he just follow zmanim on Earth?
1
vote
1answer
93 views

Hallel before chatzos at seder

I was reading Rav Schwab On Prayer (page 541) where he says the following about the timing of parts of the Seder: According to some poskim, even the recitation of Hallel should be completed before ...
3
votes
2answers
89 views

Why are mincha gedola and ketana named that?

What is big about the earlier mincha time and what is small about the later mincha time? Also, why does the term plag mincha make sense? It would seem to be a term that refers to the point midway ...
4
votes
0answers
55 views

Customs regarding reciting the Shema after the allowed time

The latest time for reciting the קְרִיאַת-שְׁמַע is ׁשׇׁלוֺש ׁשׇׁעוֺת זְמׇנִיּוֺת (three variable hours) after sunrise. On Shabbat, many communities recite the morning Shema after this latest ...
2
votes
1answer
48 views

Why is the mitzvah of tefellin not by night?

Berachos discusses the importance of saying shema while wearing tefellin. Saying shema without tefellin is likened to bringing an incomplete sacrifice (Berachos, 14b). Similiary, one who washes his ...
6
votes
3answers
243 views

Choosing between Brachos on Shma and Sof Zman Kriyas Shema

Let's say Yosef woke up late one day, and by the time he was ready to say kriyas shema, it was two minutes before sof zman kriyas shema (the latest time at which a person could say kriyas shema). He ...
5
votes
2answers
318 views

Bathroom or shema if you only have time for one?

If you wake up 5 minutes before sof zman kryat shema and you have to use the bathroom. Going to the bathroom when necessary is deorayasa (Shulchan Aruch 3:17) and so is saying the shema. Also there ...
3
votes
0answers
58 views

What happens if I wrap my tefillin before the earliest time to wrap tefillin? [closed]

The earliest time to wrap tefillin in my town is 6:14 (for the next little while), on Monday and Thursday we start at 6:15. Is it OK if I finish wrapping my tefillin before 6:14? Do I still get the ...