Nearly-half time, nearly done with the gameplay...
... and suddenly, Unity decided to do modern art : https://youtu.be/4jqYOFBaHxA
(only the first 10s matter)
If you ask me, it's not a bug, it's questioning the hegemony of the 24h time system. Or something like that. "Unintentional feature", cause it looks buggy but also quite cool for some reason.