2023-05-03 National Day: Republic of Poland, 2023 National Day: Republic of Poland, 2023 May 3, 2023 National Day: Republic of Poland, 2023 Constitution Day (1791)
2023-05-14 National Day: State of Israel, 2023 National Day: State of Israel, 2023 May 14, 2023 National Day: State of Israel, 2023 Independence Day (1948)
2023-05-17 National Day: Kingdom of Norway, 2023 National Day: Kingdom of Norway, 2023 May 17, 2023 National Day: Kingdom of Norway, 2023 Constitution Day (1814)
2023-05-20 National Day: Democratic Republic of TimorLeste, 2023 National Day: Democratic Republic of TimorLeste, 2023 May 20, 2023 National Day: Democratic Republic of TimorLeste, 2023 Independence Day (2002)
2023-05-25 National Day: Republic of Argentina, 2023 National Day: Republic of Argentina, 2023 May 25, 2023 National Day: Republic of Argentina, 2023 Revolution Day (1810)
2023-05-25 National Day: Hashemite Kingdom of Jordan, 2023 National Day: Hashemite Kingdom of Jordan, 2023 May 25, 2023 National Day: Hashemite Kingdom of Jordan, 2023 Independence Day (1946)
2023-06-01 National Day: Samoa, 2023 National Day: Samoa, 2023 June 1, 2023 National Day: Samoa, 2023 Independence Day
2023-06-02 National Day: Republic of Italy, 2023 National Day: Republic of Italy, 2023 June 2, 2023 National Day: Republic of Italy, 2023 Republic Day (1946)