The Sabbath begins at 9:18 P.M. on Friday, May 15, and concludes at 10:34 P.M. on Saturday in the Vilnius region. Sabbath candles should be lit at 9:00 P.M. and completed before sunset at 9:18 P.M. Thursday, May 14, is Ascension Day for Catholics. Friday, May 15, is Jerusalem Day. Monday on the 17th is International Museum Day. Shavuot starts at sundown Thursday, May 21.