OK, first off let me say hi to everyone. I have used this board before to answer a lot of my questions but this one has me stumped. I reset the time on a processor and come back and check it a day or two later and it seems to be jumping ahead in time? The processor is a 1769-L35E compactLogix5335E controller running version 19.15 RS5000 software. I have some metrics that are based on time, cycle time, production count, and what not and they are all getting thrown out of whack. I have two machines that do this and the are both running the same configuration. does any body have any Idea as to what could be causing this? I have attached a picture of my clock rung maybe I have something wrong in it? Any help would be greatly appreciated!