2023-04-18 National Day: Republic of Zimbabwe, 2023 National Day: Republic of Zimbabwe, 2023 April 18, 2023 National Day: Republic of Zimbabwe, 2023 Independence Day (1980)
2023-04-21 National Day: United Kingdom, 2023 National Day: United Kingdom, 2023 April 21, 2023 National Day: United Kingdom, 2023 National Tea Day
2023-04-27 National Day: Kingdom of the Netherlands, 2023 National Day: Kingdom of the Netherlands, 2023 April 27, 2023 National Day: Kingdom of the Netherlands, 2023 Official Celebration of the Birthday of H.M. King Willem-Alexander
2023-04-27 National Day: Republic of South Africa, 2023 National Day: Republic of South Africa, 2023 April 27, 2023 National Day: Republic of South Africa, 2023 Freedom Day (1994)