For the first two months of 2024, the weeks are identical to those in 2018, which means I can use those unused entries (as I only started using that calendar later during that year). Otherwise I'd have to update which day of the week everything is, but now I don't. Next year is a leap year, so it's only true until March 1st. That's enough for me, I will use a different one after that date.

mildlyinteresting