And it is not even thread safe. We found this out because we had some flaky e2e test that were run concurrently and only failed every few days. The parsed date was just a few hours away from the expected so at first we thought it had to be something wrong with timezones or NTP.
I think the name is wholly justified - it does offer (at least) one simple and effective way to shoot yourself in the foot...
the thing obviously should be called: WYWY
Came here to post this, and to add the pronunciation guide as "why? why??"
or just WWWW
edit: this wouldn't work, since W is reserved for weeks in month