Pentecost is a Christian festival, not a Jewish one. It commemorates the descent of the Holy Spirit upon the disciples of Christ, who is not recognised as the Messiah (Moshiach) in Judaism.
It lasts one day and is celebrated 50 days after Easter Sunday, which this year (2010) will be the 23rd of May.
The Sabbath begins at sundown on Friday and ends after twilight on Saturday. Due to the lengthening and shortening of days with the passage of the seasons, sunset occurs at different times on the clock.
Actually, the Jews are unique as a religion in that they have no fasts that last more than a day, like Lent (which is similar to a fast) or Ramadan. There have been people who have fasted in a matter similar to Ramadan and for just as long, but there is no national holiday for it.
The Sabbath has been part of Jewish festival and rite at least since the Babylonian Exile. According to The Bible, the Sabbath was observed as soon as the commandments were received from Sinai since in Numbers 15:32-36 a man is stoned for violating the Sabbath.
From sunset on Friday until after dark on Saturday night.
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They celebrate Shabbat and Havdalah.
they rest for the day
The same way Jews in all other countries do.
Yes. Orthodox Jews do "everything by the book". Reform Jews do anything they want.
Every Friday at sundown through Saturday at the following sundow
Friday shortly before sunset, until Saturday evening after twilight.
Reform Jews outside Israel generally celebrate Rosh Hashanah for only one day, while all other Jews celebrate Rosh Hashanah for two days. Reform Jews blow the Shofar on Rosh Hashanah even if it falls on Shabbat (the Sabbath), while others refrain from blowing the shofar on Shabbat.
Only NON-religious Jews work, just like in all other countries.
Depends on the event. See the attached Related Links for a description of a wedding, a Bar Mitzvah, a Shabbat, and the festivals.
yes for ordodox and ultra-orthodox jews reform jews might adapt the rules of shabbat
No, that violates the Shabbat.
They celebrate Havdalah.