Fun fact: the Famicom Disk System has a Y2024 problem!

The FDS stores the disk's manufacturing/rewrite date using a binary-coded decimal year in the Shōwa era (so 1926 is year $01, 1927 is year $02, 1935 is year $10, and so on).

This means that the last year which can be expressed in this system is 2024 - Shōwa 99; which is still out of bounds for the era itself, but acceptable by the Nintendo header standard.