Japan

Goku Day (Japan), commemorating the fictional character Goku.

Home Front Heroes Day

Home Front Heroes Day in the United States (proposed; locally observed in Dallas, Texas)

Europe Day

Europe Day, commemorating the Schuman Declaration. (European Union, Kosovo, Moldova, Ukraine)

National day

Commemoration of the end of the German occupation of the Channel Islands related observances:
National Day (Alderney)

Liberation Day (Channel Islands)

Commemoration of the end of the German occupation of the Channel Islands related observances:
Liberation Day, commemorating the end of the German occupation of the Channel Islands during World War II. (Guernsey and Jersey)

May 9 (Eastern Orthodox liturgics)

Christian feast day:
May 9 (Eastern Orthodox liturgics)

Tudy of Landevennec

Christian feast day:
Tudy of Landevennec

Beatification

Christian feast day:
Blessed Thomas Pickering

Pachomius the Great

Christian feast day:
Pachomius the Great

Nicolaus Zinzendorf

Christian feast day:
Nicolaus Zinzendorf (Lutheran)

Beatification

Christian feast day:
Blessed Karolina Gerhardinger

Gregory of Nazianzus

Christian feast day:
Gregory of Nazianzen (The Episcopal Church (US) and traditional Roman Catholic calendar)

Gerontius of Cervia

Christian feast day:
Gerontius of Cervia

George Preca

Christian feast day:
George Preca

Saint Christopher

Christian feast day:
Christopher (Eastern Orthodox Church)