In the blue bar at the top of the page, there are several icons on the right. Click on the head and shoulders icon and you get a drop down menu, one item of which is the User Control Panel. Click on that and then find "Board Preferences". The sixth item down is "My timezone". Select UTC-04:00 for Eastern Daylight Time. If you're not in the east, select something else!

You're welcome. (is it September yet??? How about October 15th?)
