December 3, 1967 was a

Sunday

How to solve: December 3, 1967

1. 1
   Century anchor1900s→Wednesday (3)
   Practice →
2. 2
   Divide by 1267 ÷ 12→5
   Practice →
3. 3
   Remainder of 1267 % 12→7
   Practice →
4. 4
   Divide remainder by 47 ÷ 4→1
   Practice →
5. 5
   Year's doomsday(3 + 5 + 7 + 1) % 7→2 → Tuesday
   Practice →
6. 6
   Month doomsdayDecember→12th
   Practice →
7. 7
   Distance3 − 12→-9
   Practice →
8. 8
   Final answer(2 + -9) % 7→0 → Sunday