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Barech Aleinu: Difference between revisions

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==When to say it==
==When to say it==
# During the winter one must say VeTen Tal UMatar Lebracha in Birkat HaShanim (Brachenu / [[Barech]] Aleinu). For this halacha the beginning of the winter is considered in Israel from the seventh of Cheshvan and in the diaspora from the night of December 4th (and December 5th the year '''before''' a civil leap year, such as 2015). The end of the winter is [[Mincha]] of Erev [[Pesach]] and after that we stop saying VeTen Tal UMatar Lebracha in Birkat HaShanim. <Ref>S”A 117:1, Artscroll Siddur (Nachlat Shimon p.104). See Halacha Brurah 117:5.
# During the winter one must say VeTen Tal UMatar Lebracha in Birkat HaShanim (Brachenu / [[Barech]] Aleinu). For this halacha the beginning of the winter is considered in Israel from the seventh of Cheshvan and in the diaspora from the night of December 4th (and December 5th the year '''before''' a civil leap year, such as 2015). The end of the winter is [[Mincha]] of Erev [[Pesach]] and after that we stop saying VeTen Tal UMatar Lebracha in Birkat HaShanim. <Ref>S”A 117:1, Artscroll Siddur (Nachlat Shimon p.104) writes that we begin to say VeTen Tal on the night of December 4th except if that year precedes a leap year. Halacha Brurah 117:5 writes that in a leap year (on a Hebrew calendar, December and Feburary would be in the same year) we begin saying VeTen Tal on the night of December 5th.
* The winter Equinox (formally, [http://en.wikipedia.org/wiki/Equinox Southward Equinox]) is on September 23rd (or September 22nd late in the day). In 1582 the Gregorian calendar was pushed forward 10 days and skips one day every century on the century, except for years divisible by 400. That is, in 1600, the Gregorian calendar was 10 days ahead of the Julian calendar. By 1700, the Gregorian calendar was 11 days ahead. Continuing in this way, we see that by 2000 the Gregorian calendar was 13 days ahead of the Julian calendar. Since 2000 is divisible by 400 there was no leap year and the Gregorian calendar remains 13 days ahead of the Julian calendar until 2100. For more information about this calculation see the Wikipedia page on [http://en.wikipedia.org/wiki/Gregorian_calendar#Difference_between_Gregorian_and_Julian_calendar_dates Gregorian calendar].
* Briefly, the winter Equinox (formally, [http://en.wikipedia.org/wiki/Equinox Southward Equinox]) is on September 23rd, however, due to the discrepancy between the Julian calendar and Shmuel's calendar, the equinox is assumed to be on September 21st. For an explanation of this point, see [http://www.judaicseminar.org/halakhot/talumatar.pdf?vm=r&s=1 an article by Rabbi Shamah].
* Counting 13 days from September 23rd results in October 6th. Counting 60 days from then, we arrive at December 5th, which on the Hebrew calendar is equivalent to December 4th by night.
* S"A 117:1 writes that outside Israel we begin saying VeTen Tal on the night of the 60th day from the equinox. To account for the difference between the Julian calendar and our commonly used civil calendar (Gregorian calendar), we have to review a bit of history. In 1582 the Gregorian calendar was pushed forward 10 days and skips one day every century on the century, except for years divisible by 400. That is, in 1600, the Gregorian calendar was 10 days ahead of the Julian calendar. By 1700, the Gregorian calendar was 11 days ahead. Continuing in this way, we see that by 2000 the Gregorian calendar was 13 days ahead of the Julian calendar. Since 2000 is divisible by 400 there was no leap year and the Gregorian calendar remains 13 days ahead of the Julian calendar until 2100. For more information about this calculation see the Wikipedia page on [http://en.wikipedia.org/wiki/Gregorian_calendar#Difference_between_Gregorian_and_Julian_calendar_dates Gregorian calendar].  
* Counting 60 days from September 21st results in November 21st. Counting 13 from then to account for the difference between the Julian and Gregorian calendar, we arrive at the night of December 4th. See [http://www.lookstein.org/articles/veten_tal.htm?vm=r&s=1 this shiur by Rabbi Sokolow] for more sources on this topic.
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==During the summer==
==During the summer==