Feast of the Nineteenth Day of the Month of Masail among the Bahá'ís
Celebrated on 12 DecemberFeast of the Nineteenth Day of the Month of Masail among the Bahá'ís
Other holidays on 12 December
- Constitution Day of the Russian Federation
- International Day of Heavy Metal
- International Universal Health Coverage Day
- Neutrality Day of Turkmenistan
- International Day of Neutrality
- According to the folk calendar - Paramon Winter Guide
- All-Russian Day of Reception of Citizens
- Day of customs officers of the Republic of Kazakhstan
- Day of the Virgin of Guadalupe in Mexico (Dia de la Virgen de Guadalupe)
- National Literature Day of Kyrgyzstan
- Swiss Flag Day
- Kenya Independence Day(Jamhuri Day)
- Memorial Day of the Hieromartyr Saturninus of Toulouse
- Memorial Day of the Hieromartyr Paramon of Thebins
- Memorial Day of the Martyr Philumen of Ancyra