I fish by the moon phases...but there are other factors as well..
The spawn
faith and confidence
cold fronts
honestly...I fish all the time..but I fish my hawg lakes { 80 miles away} just prior to the full moon. I won't waste a trip out there any other days..also the 2 days prior of the new moon are good as well. I kept data on this last summer..and it was pretty myuch right on.