Get yourself an almanac, either hardcopy or an app on your phone. Have a read in regards to the background of the concept...moon above, below etc. I believe it has an effect both day and night. The best thing you can do is go fishing whenever you can and keep records and see what you think. As in, record times fish were captured and see how it compares to specified 'bite' times listed in the almanac.
Cheers
Jim