I want to cast a spell but I have no patience to wait for a full moon? Will it still work if I cast it on anyothet day?

You cannot cast spells anytime apart from on a full moon or the spells simply will not work, although there are certain spells you can use any day or time in the week, I myself am an apprentice wizard and am just experimenting with new spells and I wondered exactly the same thing!

Since none of them really work you can do them anytime you want.

Well said Chuck!