January 1, 2029 is a

Monday

How to solve: January 1, 2029

1. 1
   Century anchor2000s→Tuesday (2)
   Practice →
2. 2
   Divide by 1229 ÷ 12→2
   Practice →
3. 3
   Remainder of 1229 % 12→5
   Practice →
4. 4
   Divide remainder by 45 ÷ 4→1
   Practice →
5. 5
   Year's doomsday(2 + 2 + 5 + 1) % 7→3 → Wednesday
   Practice →
6. 6
   Month doomsdayJanuary→3rd
   Practice →
7. 7
   Distance1 − 3→-2
   Practice →
8. 8
   Final answer(3 + -2) % 7→1 → Monday