When the date exceeds six months but is less than one year, the displayed date will not follow the language pack configuration. Instead, it will be displayed in the format shown in the image
flarum/frameworkblob/42dabea81f224c3f1f3aca3b6ae6a3fd31ca956c/js/src/common/utils/humanTime.ts
https://discuss.flarum.org/d/32890-date-format-choice/6
