This label has been changed to "1w" three days ago in the translation repository, so one of the next patches should change it to that.
https://translate.codeberg.org/translate/kbin/kbin/en/?checksum=230b39cf2d496441
EDIT: Link that goes to the history directly: https://translate.codeberg.org/translate/kbin/kbin/en/?checksum=230b39cf2d496441#history
Ernest is from Poland. In Polish, the word for week is “tydzień,” which starts with the letter “t.”
According to the timestamps you bet me to it :-) When I hit reply I swear your comment wasn't there!?
Comments don't propagate extremely efficiently. So viewing a post on one instance may not show the same comments when viewed from another instance. Eventually they catch up, but when discussing small timeframes, it's possible you'll miss some.