Memorial Day of the Martyr Platon of Ancyra
Celebrated on 1 DecemberMemorial Day of the Martyr Platon of Ancyra
Other holidays on 1 December
- World AIDS Day
- All-Russian Hockey Day
- Neurologist Day
- White Goat Day
- Day Without Art
- Russian Military Glory Day - Victory Day of the Russian squadron at Cape Sinop
- First day of winter
- Podologist Day
- Antarctica Day
- According to the folk calendar - Plato and Roman Winter indicators
- Tire Fitter Day
- Day of the first President of the Republic of Kazakhstan
- Day of Restoration of Portuguese Independence (Dia da Restauracao da Independencia)
- National Day of Romania (Unification Day)(Ziua Marii Uniri)
- Day of the Prosecutor's Office of Ukraine
- Self-governance Day in Iceland
- Memorial Day of the Holy Martyrs Zacchaeus of Gadarene and Alpheus, Reader of Caesarea
- Memorial Day of the Hieromartyr Roman of Caesarea
- Cathedral of Saints of the Estonian Land