Calendar for 2023

January 21 - Saturday, Rosh Chodesh Torah Service (Shevat),
   The new moon falls on the next Monday
February 11 - Saturday, Tu BShevat Service,
   Tu BShevat fell on the previous Monday
February 18 - Saturday, Rosh Chodesh Torah Service (Adar),
   The new moon falls on the next Wednesday
March 11 - Saturday, Purim Service,
   Purim fell on the previous Tuesday
March 18 - Saturday, Rosh Chodesh Torah Service (Nisan),
   The new moon falls on the next Thursday
April 5 - Wednesday, Pesach Service
April 6 - Thursday, First day of Unleavened Bread
April 9 - Sunday, First Fruits
April 12 - Wednesday, seventh day of Unleavened Bread
April 22 - Saturday, Yom Hashoah Service,
   Yom Hashoah fell on the previous Tuesday
April 22 - Saturday, Rosh Chodesh Torah Service (Iyyar)
April 28 - Friday, Yom Hazikaron Service,
   Yom Hazikaron fell on the previous Tuesday
May 20 - Saturday, Yom Yerushalayim Service,
   Yom Yerushalayim fell on the previous Friday
May 20 - Saturday, Rosh Chodesh Torah Service (Sivan),
   The new moon falls on the next Sunday
May 28 - Sunday, Shavuot (Pentecost)
June 17 - Saturday, Rosh Chodesh Torah Service (Tamuz),
   The new moon falls on the next Tuesday
July 15 - Saturday, Rosh Chodesh Torah Service (Av),
   The new moon falls on the next Wednesday
July 28 - Friday, Tisha Bav Service,
   Tisha Bav fell on the previous Thursday
August 18 - Friday, Rosh Chodesh Service (Elul)   
September 15 - Friday, Erev Yom Teruah
September 16 - Saturday, Yom Teruah,
   Rosh Chodesh Torah Service (Tishri), A Shabbaton
September 24 - Sunday, Erev Yom Kippur - Kol Nidre,
   Fast from Sunday sundown to Monday sundown
September 25 - Monday, Tashlich, Yom Kippur Service, A Shabbaton
September 29 - Friday, Erev Sukkot
September 30 - Saturday, first day of Sukkot, A Shabbaton
October 7 - Saturday, 8th day of Sukkot, A Shabbaton
October 14 - Saturday, Simchat Torah Service,
   Simchat Torah fell on the previous Sunday
October 14 - Saturday, Rosh Chodesh Torah Service (Cheshvan),
   The new moon falls on the next Monday
November 11 - Saturday, Rosh Chodesh Torah Service (Kislev),
   The new moon falls on the next Tuesday
December 7 - Thursday, Erev Chanukkah,
   Lighting of the first candle
December 9 - Saturday, Chanukkah Party,
   Lighting of the third candle, Chanukkah Celebration
December 9 - Saturday, Rosh Chodesh Torah Service (Tevet),
   The new moon falls on the next Wednesday
December 14 - Thursday, Eighth day of Chanukkah,
   Lighting of the eighth candle