Jews don't have churches - they have synagogues, and yes, they go to synagogue during Yom Kippur.
Jews in California celebrate Yom Kippur the same way that Jews the world over celebrate Yom Kippur.
Yom Kippur
The Jews celebrate Yom Kippur and Hanukkah.
Jews
No.
The holiday in question is YOM KIPPUR.
Yom Kippur also known as the days of Atonement is the holiest day of the year for Jews .
Yom Kippur is the day of atonement where Jews ask HaShem to forgive their mistakes of the previous year.
Jews observe the holiday of Yom Kippur, a 25 hour fast with no food or water and a day of prayer.
no
The Day of Atonement is Yom Kippur (Leviticus ch.23). This is the holiest day in Judaism and the day where even secular Jews attend synagogue. On Yom Kippur, Jewish people fast from all food and drinks for a complete 25hrs, starting just before sunset the previous day.
Yes. See Leviticus ch.23. The entire Talmud-tractate of Yoma is about Yom Kippur.