The title of this post may sound strange to many. If you look up any standard dictionary, there isn’t much difference between the meaning of the two words. These are typically defined as under.
Planning means looking ahead and chalking out future courses of action to be followed. It is a preparatory step. It is a systematic activity which determines when, how and who is going to perform a specific job.
Scheduling definition, a plan of procedure, usually written, for a proposed objective, especially with reference to the sequence of and time