Cron job to delete all files/directories/subdirectories older than 1 day

I would like to set up a cron job to delete all files and folders/directories older than 24 hours in my downloads directory.  I have made a few attempts to do this but cron is proving to be a bit tougher to understand than I previously expected.  I've tried a few versions of the following commands:

find /mnt/user/path/path/* -type d -mtime +0 -print0 -exec rm {} +

find /mnt/user/path/path/* -type f -mtime +7 -print0 | xargs -0 rm

find /mnt/user/path/path/* -mtime -1 -ls -exec rm -d {} +

find /mnt/user/path/path/* -mtime -1 -ls -exec rmdir -f {} +

I'm finding varying degrees of success, but essentially the downloads folder is broken into a few subdirectories.  I want to clean out those subdirectories of all files and folders older than 24 hours on a weekly scheduled job.  I have not been able to get this working the way I want.  I have run a combination of these scripts with some different options enabled, but I'm looking for one script to do what I need.  Does anyone have a better example of what I'm trying to accomplish?