It doesn't need root to run that I know of but it might for manipulating system stuff.

You might be able to do this with [Tasker](https://play.google.com/store/apps/details?id=net.dinglisch.android.taskerm&hl=en) or [AutomateIt](https://play.google.com/store/apps/details?id=AutomateIt.mainPackage&hl=en).

Google search ringtone randomizer. There's a few that sound like they do that. 

Try Random Ringtones Manager. There's even a subreddit to share playlists at /r/androidrrm 

You might be able to do this with [Tasker](https://play.google.com/store/apps/details?id=net.dinglisch.android.taskerm&amp;hl=en) or [AutomateIt](https://play.google.com/store/apps/details?id=AutomateIt.mainPackage&amp;hl=en).

Let's say that I have 24 songs on my phone and I want them as ringtones to change depending on the hour. So Song 1 plays during 1AM, Song 2 plays during 2AM, Song 3 plays during 3AM and so on.

Is there any way to make this easier without going in the settings hourly? I know it's probablt useless but I thought Animal Crossing songs would fit on my phone, haha.

Hourly Ringtone?