If you look at Kosmonaut's profile, you will notice that his only question shows "jan 20 at 0:29" as timestamp.
If you look at the question, Central Pennsylvanian English speakers: what are the limitations on the "needs washed" construction? you will notice that Lauren Ψ edited the question on Aug 2 at 17:31, and she didn't answer the question.
Does the timestamp show a different date to avoid the question is bumped on the front page, or is there something more behind this?