The Sabbath begins at 9:42 P.M. on Friday, May 23, and concludes at 11:08 P.M. on Saturday in the Vilnius region. Sabbath candles should be lit at 9:24 P.M. and completed before sunset at 9:42 P.M. Shavuot or Shavuos begins at sundown on Sunday, June 1, and ends at sundown on Tuesday, June 3 (or in Israel at sundown on Monday, June 2).