It’s been 45^2 for about 45 minutes already (in Kiribati), and bumpers will have sharper corners for the first time, so I’ll leave this.
Most of those reading within a year of my post haven’t known another square year (latest was 1936), and unless significant life extensions happen this century, few of us will see the next square year (2116). There is no better time to celebrate being square, whether that means not fitting a round hole, or fitting into a structure. I’m the former, not what’s in the song, but it’s catchy.