Zuse is a tool for submitting your recently listened tracks from the Zune software to Last.fm. Zuse works by using the XML from your Zune Social taking from it your recently played songs on the Zune software. Zuse then looks for the song length on a Yahoo Music API. For that information, it determines how long ago the newest track on the list was played. However, I cannot tell exactly when it was played because of the lack of information in the XML retrieved from your Zune Social profile. However what is being worked on is a way to determine what songs have already been submitted to Last.fm.
Download: Zuse 1.1