St John's Day and the second day of the Midsummer celebrations (although this is not the astronomical summer solstice, see June 20) (Roman Catholic Church, Europe), and its related observances: Saint Jonas' Festival or Joninės (Lithuania)

Saint Jonas' Festival, also known as Rasos, Joninės, Kupolė, Midsummer Day or Saint John's Day) is a Lithuanian midsummer folk festival celebrated on 24 June all around Lithuania and by the Lithuanian diaspora worldwide. The celebrations often involve flower wreaths, bonfires and torchlit processions, and music and dancing.

Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, Poland to the south, and the Russian semi-exclave of Kaliningrad Oblast to the southwest, with a maritime border with Sweden to the west. Lithuania covers an area of 65,300 km² (25,200 sq mi), with a population of 2.9 million. Its capital and largest city is Vilnius; other major cities include Kaunas, Klaipėda, Šiauliai and Panevėžys. Lithuanians are the titular nation, belong to the ethnolinguistic group of Balts, and speak Lithuanian.