3rd » Carl Lwanga named Charles Lwanga and Uganda Martyrs called Companions
3rd » Clotilde
3rd » Kevin of Glendalough
3rd » Saint Ovidius e.g Ovidius
3rd » John XXIII (Angelo Giuseppe Roncalli) (Lutheran Church)
3rd » Martyrs of Uganda (Episcopal Church (USA) called Episcopal Church, Lutheran Church)
3rd » Theotokos of Vladimir or Vladimirskaya (Russian Orthodox)
3rd » June 3 (Eastern Orthodox liturgics)
3rd » Latest day on which Ascension Day can fall in Western Christianity, while April 30 is the earliest; celebrated 40 days after Easter (Christianity), and its related observances:
3rd » Day of Prayer Global Day of Prayer known as Global Day of Prayer (Western Christianity)
3rd » Confederate Memorial Day (Kentucky, Louisiana, and Tennessee)
3rd » Commerce Consulate of Buenos Aires or Economist day (Buenos Aires)
3rd » Festival to Bellona (goddess) called Bellona (Roman Empire)
4th » Flag days in Finland called Birthday of Carl Gustaf Emil Mannerheim & Flag Day celebration of the Finnish Defence Forces (Finland)
4th » Christian Feast Day:
4th » Francis Caracciolo
4th » Pope John XXIII (Episcopal Church (USA))
4th » Optatus
4th » Saint Petroc or Petroc of Cornwall
4th » Quirinus of Sescia
4th » Saturnina
4th » June 4 (Eastern Orthodox liturgics)
4th » Emancipation Day Tonga named Emancipation Day or Independence Day, commemorates the abolition of serfdom in Tonga by George Tupou I of Tonga e.g King George Tupou in 1862, and the independence of Tonga from the British protectorate in 1970. (Tonga)
4th » Public holidays in Estonia named Flag Day (Estonia)
4th » International Day of Innocent Children Victims of Aggression (International observance e.g International)
4th » Public holidays in Hungary e.g National Unity Day (Hungary)
5th » Arbor Day New Zealand e.g Arbor Day (New Zealand)
5th » Christian Feast Day:
5th » Saint Boniface called Boniface (Roman Catholic Church)
5th » June 5 (Eastern Orthodox liturgics)
5th » Indian Arrival Day Suriname named Indian Arrival Day (Suriname)
5th » Movement of 15 Khordad known as Khordad Movement Anniversary (Iran)
20th » Margareta Ebner (Beatification named Beatified)
20th » Pope Silverius
20th » June 20 (Eastern Orthodox liturgics)
20th » Flag Day (Argentina) known as Day of the National Flag (Argentina)
20th » Earliest date for the summer solstice in the Northern hemisphere and the winter solstice in the Southern hemisphere, and its related observance:
20th » International Surfing Day (June 21 during non-leap years)
20th » Midsummer or Litha / Midsummer celebrations in the northern hemisphere, Yule Neopaganism known as Yule in the southern hemisphere. (Neopagan Wheel of the Year)
20th » Festival in honor of Summanus (Roman Empire)
20th » Public holidays in Azerbaijan known as Gas Sector Day (Azerbaijan)