Questions related to different times of day as they apply to Jewish Law.
0
votes
2answers
110 views
Why is the world round? [closed]
Why does shabbat start at different times at different places? Crossing a time zone does not conjure up a time warp, so how can it be Friday in one place, and Shabbat in another? It just doesn't ...
1
vote
1answer
62 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?
11
votes
4answers
191 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 ...
2
votes
2answers
237 views
If borchu of maariv is before plag hamincha and the amida after plag, is this “tartei desasrei” – two contradictory acts?
A minyan starts to daven mincha before plag hamincha with the intention to daven maariv after plag hamincha. In the event, mincha is too fast and the borchu of maariv is before plag hamincha while the ...
6
votes
2answers
117 views
Earliest time to make an Eiruv Tavshilin
When's the earliest time one can make an Eiruv Tavshilin on erev yom tov?
6
votes
0answers
50 views
Shkiya/Netz behind a mountain [duplicate]
Possible Duplicate:
Commencing Shabbos
If one is located behind a mountain, what time is Shkiya or Tzeis?
Is it when the sun sets below the "calculated" horizon (when the sun should set ...
4
votes
1answer
1k views
Last time for Kiddush Levanah
How can I calculate the last possible time to say Kiddush Levanah for a given month?
7
votes
3answers
3k views
What is the earliest time one can daven Shacharis?
When is the earliest time you can Daven Shacharis?
5
votes
1answer
241 views
What are (all) the Havdalah halachic times?
What are all the halachic opinions for when to do havdalah? I'm writing a calendar and I want to provide all the options that people use.
The ones I've seen are:
42 min after sunset ??
72 min after ...
3
votes
3answers
148 views
Precise Zemanim?
This site (see the paragraph starting with "accuracy") says that no one can predict the times for sunrise and sunset to within a minute accurately for a given location because of certain atmospheric ...
5
votes
2answers
178 views
If it's your minhag to daven Hanetz, do you do so even without a minyan?
A friend once told me that if one's minhag is to daven with Hanetz (i.e., starting the Amida prayer at sunrise), and if there's no Hanetz minyan nearby, you should still daven Hanetz, even without a ...
10
votes
3answers
173 views
Who distributed the zemiros across the three meals?
Any book of zemiros whether it's a siddur, birchon, or what have you divides the zemiros between the three meals. Sometimes the rationale is obvious as with the tikkunim which are written for each ...
4
votes
0answers
89 views
On a boat in the Arctic Circle [closed]
I and my wife will be spending Shabbat Hagadol (this year the 31st of March) on a ship. The evening before the ship will be leaving one of the more northern ports of Norway, and navigating through ...
5
votes
0answers
133 views
Is mincha gedolah better [duplicate]
Possible Duplicate:
Timing of Mincha
Why do people wait to daven mincha later and not daven mincha gedolah?
10
votes
2answers
279 views
40 minutes offset for candle lighting?
Several Zmanim apps are giving a choice on my "candle lighting offset". The default here is 40 minutes instead of the usual 18 minutes I've heard.
Why 40? Why do I even have a choice?
Does the fact ...
3
votes
0answers
53 views
When is the earliest time one can pray in the morning? [duplicate]
Possible Duplicate:
Davening Shacharis?
When is the earliest time one can pray (the Shemone Esre) in the morning?
Reciting Keriath Shema' has its own rules, and I understand you may need ...
7
votes
1answer
120 views
Does praying at the wrong time count for anything?
(This question might be a prerequisite to be able to answer this question.)
Does praying at the wrong time count for anything? What does it accomplish? Sources, please.
3
votes
1answer
124 views
Mincha started before sheki'a, extended beyond it. What about davenning maariv straight after mincha?
A minyan starts to daven mincha before sheki’a with the intention to daven maariv after sheki’a. In the event, mincha extends beyond shki’a.
There are IMHO three possible cases:
They start but do ...
3
votes
2answers
89 views
Marriv before/after lighting the Menorah
Does one need to Daven Marriv before lighting the Chanukah Menorah or can you light before davening? Why?
7
votes
2answers
248 views
Magen Avraham - Practically no Plag HaMinḥah or just no Plag HaMinḥah in winter?
Calling all science and math-oriented Judaism.SE-ers!
According to the website MyZmanim.com, today's Halachic times where I work are as follows (only a handful of times are shown because the question ...
5
votes
1answer
92 views
What is “חצות האמצעי”?
While researching an answer to this question I stumbled across the term "חצות האמצעי".
What does it mean? Does it refer to halachic midday, i.e. halfway between netz hachama and shkias hachama, or ...
6
votes
1answer
82 views
Candle Lighting Time: Why Then?
Why 18 minutes (or other minhagim). Where did these numbers come from?
2
votes
1answer
60 views
Optimal time for sleichos
What is the optimal time for the recitation of, nay the asking for, Sleichos? Please state whose opinion you are following or stating in your answer.
4
votes
1answer
162 views
Why daven ke-vasikin on Hoshana Rabbah?
I know that some people specifically daven ke-vasikin on Hoshana Rabbah. Is this only because they stayed awake all night and thus want to daven as early as possible, or is there a more direct and ...
4
votes
2answers
117 views
Tachanun for Shacharis in the afternoon, on a day where there is no Tachanun at Mincha
If you start Shacharis Shmonei Esrei just before Chatzos, on a day where there is no Tachanun said at Mincha, and finished after Chatzos, do you say Tachanun?
5
votes
2answers
353 views
How is Chatzos Halayla (Halachic Midnight) calculated?
It seems pretty easy to calculate from the get-go that the formula is something like this:
# a halachic hour is one twelfth of the time between sunrise and sunset
halachicHour = (timeOfSunset - ...
3
votes
3answers
172 views
Why do we call it “candle-lighting” time?
Since it is still permissible to do melacha (work forbidden on shabbat) including lighting shabbat candles until shki'a (sunset), which is 18 minutes (or 40 minutes in Jerusalem) following ...
2
votes
1answer
1k views
When is the earliest time you can daven ma'ariv during the week?
When is the earliest time you can Daven Maariv during the week?
1
vote
1answer
1k views
What is the earliest time to daven maariv during the week? [duplicate]
Possible Duplicate:
When is the earliest time you can daven ma'ariv during the week?
On Shabbos one could accept Shabbos early and thereby daven Maariv early. During the week, when ...
4
votes
2answers
63 views
When can Melavah Malkah be eaten until?
When is the last time one can eat a meal on Motzei Shabbos and still have it considered Melavah Malkah? When is the deadline?
3
votes
2answers
262 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
257 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
177 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 ...
2
votes
1answer
276 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
1answer
190 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 ...
10
votes
1answer
231 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?
7
votes
1answer
273 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 ...
3
votes
3answers
108 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?
2
votes
1answer
374 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
320 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
130 views
8
votes
1answer
2k views
3
votes
3answers
51 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
390 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.
9
votes
2answers
248 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 ...
7
votes
3answers
159 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
2answers
96 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.)
5
votes
1answer
171 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"?)
2
votes
1answer
97 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 ...
