First off the best time to fish is any chance you get. That said based on the tides I would fish NBP Thur. night from about 8pm to 3am and then pack it up. At low tide the bite will stop for the most part and maybe pick back up at daylight for a hour or so.
I try to fish the last hour of the incoming tide, hightide and the outing. I will stay longer just depends on the bite. The real trick is not the tide but that the water needs to be moving.
Below are the tides for Thur. & Fri. Hope this helps you out...Tightlines
Tides for Chesapeake Beach starting with June 19, 2003.
Day High Tide Height Sunrise Moon Time % Moon
/Low Time Feet Sunset Visible
Th 19 Low 1:58 AM 0.5 5:41 AM Rise 12:27 AM 75
19 High 8:35 AM 1.5 8:34 PM Set 11:03 AM
19 Low 3:32 PM 0.5
19 High 9:08 PM 1.3
F 20 Low 3:07 AM 0.6 5:41 AM Rise 12:55 AM 66
20 High 9:26 AM 1.5 8:34 PM Set 12:07 PM
20 Low 4:14 PM 0.5
20 High 10:07 PM 1.4