Jerusalem Day, also known as Yom Yerushalayim, is an Israeli national holiday celebrated on the 28th day of Iyar in the Hebrew calendar, which corresponds to May 15 in 2026. The day commemorates the reunification of Jerusalem and the establishment of Israeli control over the Old City following the six-day war against Jordanian forces. Observed primarily in Israel, the holiday features various events, including recitations of the Hallel prayer in synagogues, lectures on Jerusalem's history, street parades, parties, state ceremonies, and memorial services for those who died in the six-day war. Although it is a significant day for the Jewish community, it is not a public holiday, and businesses maintain normal operating hours.