My opinion it’s 3 days of full moon. I have seen a ton of fish that will follow jig up on livescope to not bite for hours and hours over those three days. 3days before full moon and they bite like crazy, same with 3days after. This year alone I fished 8 full moons straight at night and would barely manage a couple fish each night. Last year was exact same results with walleye, white bass, hybrids too. Just my experience