When I setup the nighttime one, I generated a playlist in playlist pro, did so many tracks in the first screen, then when I needed to add the tracks, I added what I had in the After Dark folder, which came out to like 260 songs, then I added it into the right side for like 215 tracks and hit generate, and with 215 songs, it came out to 12 hours, 2 minutes, and 15 seconds. The whole folder itself was over 15 hours.