If possible, you don't eat leftover food, OK? Because the demons, they favor leftover food, so they will, kind of, takeaway the purity of the food. So, if you eat it again, you are mixing with the demon's energy. Not too good. Try to cook just enough and then you just eat that. Next time, you cook again. Up to six o'clock, we can eat because the Sun is still there. But it's different in different countries. Depends on what time the Sun sets. Also depends on the season, as well. Just eat before the Sun sets; that will be good.