Is Plex actually tracking date information for the Recently Viewed filter? Is there some way to actually view this bit of information for a specific film in your library?
Your best chance is to use PlexPy for this type of information gathering.
I am already running Plexivity to track that stuff but it occasionally just silently fails to track stuff and has to be restarted so I end up with gaps in the data. It seems pretty likely that Plex is already keeping explicit date data somewhere (unless they just add every movie you watch to the top of a list and discard oldest entry, but I wouldn’t expect that to be the case)
@dopefish3d said:
I am already running Plexivity to track that stuff but it occasionally just silently fails to track stuff and has to be restarted
Switch to PlexPy. 
It seems pretty likely that Plex is already keeping explicit date data somewhere
There might be such a date, but I am not sure how to access it. And it might not show playbacks from all users but just from the server owner.
If you are just looking to find the last date something was viewed just pull up the XML for that movie/episode. Look for the number after the words “lastViewedAt=”. This will be the date and time in unix epoch format. Find an online date converter and there you go.
Is there a way to easily find the xml for a particular movie? my server is on OSX, i’m not even sure where to look for the .xml files
Using Plex Web App go to the preplay page for the movie (that’s the page with the movie info). On th eleft click the 3 dots and then info. You get a pop-up. Click view XML.
hehehe, ok well I’m a little bit closer now. The XML button is there for the primary user of the server (and I can find the lastViewedAt data), but the XML button doesn’t show up for Home sub-users, but these users each are tracking this data properly. Is there a way to get this data for a Plex Home sub-user?
@MovieFan.Plex just bumping this before I close out this thread: is there a way to get at this .xml data for Plex Home sub-users?
Unfortunately no. You can install PlexPy as OttoKerner suggested above. The only other way would be to access the Plex database directly. I don’t recommend accessing the database directly unless you are familiar with databases. There is a high possibility of really ruining things if you don’t know what you are doing.
