Shavuot for the Hebrew Year 5783 begins in the Diaspora at sundown Thursday, May 25, 2023, and ends at nightfall on Saturday, May 27, 2023. Pentecost 2023 is celebrated on Sunday, May 28, 2023. There is a parallel in History between the creation of the Jewish Nation and the United States of America. The beginning of both Israel and the US as nations was marked by a Covenant.