While wearing a kittel is not specifically associated with Jerusalem Day in Jewish tradition, it’s not uncommon for observant Jewish men to wear a kittel during various religious ceremonies or celebrations. Jerusalem Day, which commemorates the reunification of Jerusalem and the establishment of Israeli control over the Old City during the Six-Day War in 1967, is a significant event for Jewish people worldwide. However, the attire worn on Jerusalem Day is often more festive and may vary depending on individual customs and practices. Some may choose to wear traditional religious attire, including a kittel, as a sign of reverence for the occasion and to mark the significance of Jerusalem in Jewish history and spirituality.