The Century-Item:
The year is 2024. The century is 20.
20/4 = 5, with no remainder. Overplus is 0. 3-0 = 3. 3x2 = 6.
The Year-Item:
The year part is 24. Number of dozens: 2
24/12=2. Overplus: 24 mod 12 = 0. Number of 4's in the overplus: 0. 2+0+0 = 2.
The Month-Item: May: 1 (from the text).
The Day-Item: The day is 24.
Adding all items:
6+2+1+24=33. 33 mod 7 = 5, which is Friday.
This was the part I as hoping you'd write out :) I can't make heads or tails of the explanation.
The Century-Item:
The year is 2024. The century is 20.
20/4 = 5, with no remainder. Overplus is 0. 3-0 = 3. 3x2 = 6.
The Year-Item:
The year part is 24. Number of dozens: 2
24/12=2. Overplus: 24 mod 12 = 0. Number of 4's in the overplus: 0. 2+0+0 = 2.
The Month-Item: May: 1 (from the text).
The Day-Item: The day is 24.
Adding all items:
6+2+1+24=33. 33 mod 7 = 5, which is Friday.