Hey @Igor_Treptau It looks like this issue has already been reported by other users and has been classified as a bug by the Cursor team.
Based on their latest reply, recent changes to the system prompt have had mixed results, and they expect the issue to be resolved in a future model release.
Here is a link to a similar thread: https://forum.cursor.com/t/today-is-the-wrong-year/151368/21