find help with directory purge.

Hi, I have a purge directory called /b02/purge which has backed up directories like this

drwxrwxr-x 17 root root 4096 Jan 5 15:33 purge1
drwxrwxr-x 17 root root 4096 Jan 5 16:21 purge.new1
drwxrwxr-x 15 root root 4096 Jan 5 16:21 purge.new2
drwxrwxr-x 17 root root 4096 Jan 12 16:16 purge.new3
drwxrwxr-x 18 root root 4096 Jan 15 14:44 purge.new4
drwxrwxr-x 18 root root 4096 Jan 19 14:59 purge.new5
drwxrwxr-x 17 root root 4096 Jan 22 11:27 purge.new6
drwxrwxr-x 17 root root 4096 Jan 26 19:30 purge.new7
drwxrwxr-x 18 root root 4096 Feb 1 11:17 purge.new8
drwxr-xr-x 15 root root 4096 Feb 2 18:53 purge.new9
drwxrwxr-x 15 root root 4096 Feb 4 15:03 purge.new10
drwxrwxr-x 15 root root 4096 May 9 15:02 purge.new11
drwxrwxr-x 15 root root 4096 Jun 2 14:50 purge

how can i purge directories which are created older than 60 days only by looking at purge directory's time stamp.

any help is appreciated.

Delete Files Older Than x Days on Linux - How-To Geek

Thanks !
The issue of using that command is lets say the directory purge which is created on Jun 2 may have a file which is more than 60 days old. I don't want to delete it.

Aim is to delete the directories in /b03/purge which is more than 60 days old.

Based upon what? Modify time? Create time? Access time?