What is International Day of Happiness called in Afrikaans with how to pronounce and transliteration in English?

English to Afrikaans

• Father's Day Vadersdag
• World Down Syndrome Day
• International Mother Earth Day
• World Refugee Day Wêreld Vlugtelinge Dag
• World No-Tobacco Day Wêreld Geen Tabak-Dag
• World Habitat Day
• Software Freedom Day
• World Day of Social Justice Wêreld Dag van sosiale geregtigheid
• Memorial Day
• Valentine's Day Valentynsdag