Here is a link for a list of proposed hourly changes for specific rural post offices under new plan

A list of each post office affected in the recently announced United States Postal Service plan to reduce hours at 13,000 rural post offices announced May 9, 2012 is now available.

An explanation of the plan, provided by Save the Post Office is available here. To see a history of the plan, scroll the Save the Post Office website for more coverage.