Mac OS Sierra Clock problem

Upon startup of The SkyX Pro, following all updates including daily build, the software reports time one hour behind computer clock even though "use computer clock" is checked.  Attempting clock verification in the tools menu reports "error 209."  

I'm using Mac OSX High Sierra 10.13.4

When I switch to windows under bootcamp and run The SkyX Pro under windows 10, I have no such problem. I would prefer to use the mac side.  Any suggestions on a clock fix?

Thanks