In the EventSentry management console, could you please check to see under "Global Options" if you see a box "UTC Support Enabled" that is grayed out? Then, in the web reports under "Settings > Profiles", is the box checked for UTC under database? If you saw "UTC Support Enabled" in the management console, please make sure that option is checked. If you didn't see that in the console, please make sure that option is unchecked. Now, you can also check the timezone settings by going to:
http://servername:8080/preferences (replacing servername with the name of your management console server)
Did that resolve your issue or are you still seeing the problem?