How to see total playlist minutes on Play Music app/S8

[Android Central Question]

I'm using the Play Music app on a Samsung S8. Although I can see individual song minutes, I can't see total playlist minutes like iPhone users. Is this a setting I need to change? I need to create 45 minute playlists for my hip hop cardio class. I'm having to do the math manually. I can tell an average of 12-13 songs will last 45 minutes, but some songs are longer or shorter creating a class planning issue.