« first day (158 days earlier)      last day (1084 days later) » 

12:16 AM
Brain-Flak Syndrome: The act of forgetting what your code does before you've even written it.
11
 
 
14 hours later…
2:15 PM
I switched my approach, and found this range checker pretty easily. It might still be golfable and for my application I don't need the logical not at the end, but it's 76 bytes as is.
 

« first day (158 days earlier)      last day (1084 days later) »