Today I stumbled on a nice, condensed chart showing the hours of operation for a bunch of key sights in Cordoba, compiled by the local tourist organization. It can be found here. I see the chart is labeled "March" at the upper right, so it appears they make an effort to keep it up to date. I haven't put the chart into use yet, so I can't comment on its accuracy at this point.
I know many people just day-trip to Cordoba, but I've noticed a fair number of posts recently by people planning to spend at least two nights there, so perhaps this will be useful information. I found some things on the list I hadn't seen mentioned elsewhere; perhaps they are new.
A nice feature is that the places open on Monday are flagged with double asterisks, making it easy to find things to do on that sometimes-problematic day of the week.