Children's Day

Universal Children's Day (Germany)

Public holidays in Azerbaijan

Oil Workers' Day (Azerbaijan)

Public holidays in Thailand

National Youth Day (Thailand)

Independence Day (South Ossetia)

Independence Day of South Ossetia (not fully recognized)

Public holidays in Nepal

Constitution Day (Nepal)

September 20 (Eastern Orthodox liturgics)

Christian feast day:
September 20 (Eastern Orthodox liturgics)

Vincent Madelgarius

Christian feast day:
Vincent Madelgarius (Maelceadar)

Theodore, Philippa and companions

Christian feast day:
Theodore, Philippa and companions

Korean Martyrs

Christian feast day:
Korean Martyrs, including Andrew Kim Taegon and Laurent-Marie-Joseph Imbert

José Maria de Yermo y Parres

Christian feast day:
José Maria de Yermo y Parres

John Patteson (bishop)

Christian feast day:
John Coleridge Patteson (commemoration, Anglicanism)

Jean-Charles Cornay

Christian feast day:
Jean-Charles Cornay (one of Vietnamese Martyrs)

Glycerius (bishop of Milan)

Christian feast day:
Glycerius of Milan

Fausta of Cyzicus

Christian feast day:
Fausta of Cyzicus

Saint Evilasius

Christian feast day:
Evilasius