An air carrier First Officer describes the AM to PM reserve pilot schedule changes over a five day period and how the air carrier disregarded crew member safety.

Narrative

I was scheduled for a PM airport reserve line. I was contacted by Crew Scheduling informing me that I would be overnighting in ZZZ that night; to arrive at the hotel at approximately XA30 that evening. The following morning; I would be waking up 8 hours later in the morning for an AM shift. Yesterday I was on duty over 11 hours. Today I am back on PM airport reserve; with nearly the same situation occurring. So over my 5 day reserve period; I will be switching my body from a PM schedule to an AM schedule to a PM schedule to an AM schedule to a PM schedule. This is completely ludicrous. This is totally unsafe. This goes against everything known for safely scheduling crew member duty ever written about by NASA. It is disappointing that this is not the first time that I have encountered this situation with my air carrier. I hope that it stops. Poor planning by management for crew member availability is the only thing that I can think about. It appears that they are putting their finances and bottom dollar over crew member safety concerns.