LDS Tools doesn't display correct dates for calendar entry

I've entered our stake conference on the stake calendar correctly (Aug 24-25,2013). It displays in LDS Tools as August 23-24,2013. Fri-Su (also inconsistent). How do we fix this?

I heard this problem from another user earlier. I'm looking into it this week. What time zone are you located in? I wonder if it is related to the problem.