December 5 National Day Calendar with a complete list of Food Days in December and on the day December 5th. INTERNATIONAL VOLUNTEER DAY [UN] THURSDAY NIGHT FOOTBALL: TEXANS VS JAGUARS [NFL NETWORK] ST. NICHOLAS EVE/ KRAMPUS DAY [NETHERLANDS, GERMANY, BULGARIA, ITALY, UKRAINE, ETC.] KLAUSJAGEN [KUSSNACHT, SWITZERLAND] SINTERKLAAS [BELGIUM] REPEAL DAY BATHTUB PARTY DAY DAY OF THE NINJA