Technically, if you assume a radially symmetric (circular) storm and no weakening of the wind field as it goes over land, if you take a direct hit of the storm at the current forward speed (9 mph), you would experience hurricane force winds for 20 hours and tropical storm force winds for a whopping ~44.5 hours. Increase the forward speed to about 18, however, and you can halve both of those times. Thankfully though, the storm is not radially symmetric -- there are breaks in the wind field and it is not entirely circular -- and there will be some weakening of the wind field in all quadrants after landfall, even if part of the storm is still over water.