Tagged Questions

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

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11
votes
3answers
534 views

When does somebody living in space (e.g. ISS) observe Shabbat?

I understand that Jewish astronauts have been advised to observe Shabbat by Cape Canaveral time, by analogy with traveling to a place that doesn't have daily sunrise/sunset where some rule you use the ...
3
votes
2answers
424 views

Davening Maariv at Shekiya / or after Plag HaMincha - repeating Kriyas Shema

If a person prays Maariv after Plag HaMincha prior to Shekiya is there any Halachic authority that holds he is Yotzei the Mitzva of Kriyas Shema and does not have to repeat it? What if he prays right ...
4
votes
2answers
391 views

Can one follow Rabbeinu Tam time for beginning Shabbos?

Does anyone today follow Rabbineu Tam time for the beginning of Shabbos? Reading some tshuvas (e.g. Eretz haTzvi) it is clear this was widespread in Europe. If one has previously been accustomed to ...
4
votes
1answer
202 views

Alos Hashachar on a flight from Israel to Toronto

What time will a person cross alos hashachar (first light of the sun) if he is flying from Israel to Toronto on the night of the fast of the 17th of Tammuz? The flight leaves Israel at one in the ...
5
votes
1answer
265 views

Shabbat in the arctic

If I were to travel to Barrow, Alaska in the summer, when there is no sunset, when should I light the Shabbat candles? (This is not a hypothetical question; I work remotely for an Alaskan corporation ...
9
votes
2answers
236 views

Davening early Maariv first night of Shavuos

I have always heard that on the first night of Shavuos you should wait till Tzais HaKochavim for Maariv in order to have Temimos - 7 complete weeks of Sefira. Recently I heard that Harav Ovadia Yosef ...
8
votes
1answer
466 views

When praying alone, can one say Ma'ariv/Arvit before shkia (sunset)?

I have heard in the past that one praying alone may not say Ma'ariv/Arvit until shkia/sunset but that one praying with a minyan can start Ma'ariv as early as Plag HaMincha. Could someone provide me a ...
10
votes
1answer
295 views

When does a day start/end in the far North/South?

As I understand it, a day in the Jewish calendar is from sunset to sunset. How is this handled if you are living so far north or south that you have long periods of daylight or darkness?
4
votes
1answer
112 views

Mincha before lunch on the 8th day of Pesach (Chabad)

The Luach Kolel Chabad says it's customary to pray mincha before lunch on the eighth day of Pesach. Why?
2
votes
1answer
598 views

Early maariv on 2nd day Yom Tov

A shul in my city made an early maariv for the 2nd day of yom tov. Knowing who the Rabbi is, he did not do this out of ignorance. There are 2 issues I am unclear about: Are there contemporary ...
2
votes
1answer
436 views

Sefiras HaOmer - earliest time to count

According to Halacha what is the earliest time can you say Sefiras HaOmer each night and be Yotzei?
3
votes
1answer
300 views

Optimal time for Meal on Purim

What is the optimal time for the Purim Seduah (Meal)?
1
vote
1answer
70 views

Time for Reading the Meggilah

What is the optimal time for reading the Meggilah By day? By night? When is the first and last halachicly acceptable time for each?
2
votes
1answer
355 views

What is Neitz and why is it important

What is Neitz and why is it important? My inspiration: http://mekubal.wordpress.com/2011/03/14/at-long-last/#comments
5
votes
0answers
134 views

Is mincha gedolah better [duplicate]

Possible Duplicate: Timing of Mincha Why do people wait to daven mincha later and not daven mincha gedolah?
4
votes
2answers
206 views

Shachris in the Dark

When do people who live in places where it is dark for days Daven Shachris and put on Tefillin? Please provide a source (Mareh Makom).
8
votes
1answer
2k views

Davening on Plane Zmanim

How do you know when to daven Shachris on a plane?
3
votes
3answers
64 views

12 hours to the day, 12 hours to the night

Why is a day and night divided into 12 hours? Why not 10 hours? What is the significance of 12?
4
votes
3answers
153 views

Preferable time to light Chanukah Menorah

What is the preferable time to light the Chanukah Menorah: after dark or before?
12
votes
7answers
223 views

Zmanim accuracy before digital clocks?

How was time measured for the purpose of Zmanim before we had accurate clocks like we do today? Was it possible to accurately determine Chatzos (at night) or the different watches of the night? I know ...
4
votes
1answer
560 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.
8
votes
3answers
281 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 ...
3
votes
2answers
178 views

Are there different shitos for when fasts end? What are they?

Are there different shitos for when fasts end? (Similar Motzei Shabbos, when some people wait 72 minutes past shkiya to do melacha, where other people wait less.)
7
votes
3answers
5k views

What is the earliest time one can daven Shacharis?

When is the earliest time you can Daven Shacharis?
4
votes
1answer
2k views

When is the earliest time you can daven ma'ariv during the week?

When is the earliest time you can Daven Maariv on a weekday?
6
votes
1answer
163 views

Why does it get darker in Israel quicker?

Why is it that it gets darker in Eretz Yisroel quicker than in the USA, making for a shorter Ben Hash'moshos?
3
votes
5answers
1k views

Priorities: Mincha Ketana vs Mincha Gedola

Which timing of mincha is more important: mincha gedolah or mincha ketana? Why?
6
votes
1answer
238 views

Can I say kiddush levana during daylight hours if the moon is visible?

Suppose it's late afternoon or early morning and the moon is visible -- can I say it then? Or must it be at "night"? (If so, how do we define "night"?)
10
votes
2answers
317 views

Latest shabbat not longest day…?

I was under the impression that the longest day was June 22nd, and yet, year after year- the latest time for candle lighting takes place about a week and a half after that. Intuitively, the latest ...
4
votes
1answer
102 views

Shabbos and Later Davening (Prayer)

Why on Shabbos do most people daven (pray) later than usual? (I seek an halachic answer.)
2
votes
1answer
125 views

Food on crock-pot done by when, when making shabbos early?

Normally, let's say I make shabbos at the usual time, shortly before sunset. If I want to leave food in the crockpot, I want to make sure it's cooked by sunset. Now what happens if I make Shabbos ...
7
votes
1answer
112 views

Candle Lighting Time: Why Then?

Why 18 minutes (or other minhagim). Where did these numbers come from?
4
votes
1answer
285 views

Jewish Sunrise and Sunset

How can one calculate Jewish sunrise and sunset? I'm not necessarily asking for a formula. Just wondering if there's a difference between Halachik rise/set and what the world considers [e.g. science] ...
3
votes
3answers
123 views

Temimos Thiyenah

On Shavous by Night we wait and daven Marriv late in order to have Temmimos,Why dont we daven early on the second night of Pesach for the same reason?
5
votes
1answer
2k views

Last time for Kiddush Levanah

How can I calculate the last possible time to say Kiddush Levanah for a given month?
13
votes
4answers
304 views

Commencing Shabbos: Shkiya behind a mountain

It is common practice nowadays for Shuls to publish the zmanim (times) to begin Shabbos (the Sabbath) and other activities. These times, it would seem, are based upon standard calculations of sunrise ...
14
votes
3answers
2k views

Putting on tefillin late

For whatever reason, I was unable to put on tefillin while davening shacharit this morning. However, I have access to tefillin now, and the sun has not yet set. After I put on the tefillin, what ...
15
votes
6answers
670 views

Halakhic International Date Line issues

According to halakha, where is the international date line? More specifically, I have heard that some people say you should observe Shabbat on Sunday in Japan & New Zealand and/or on Friday in ...