I think each moon phase last about seven days. Also from new moon to new moon takes about 29.5 days. Sorry if you have a late reply.
http://www.lpi.usra.edu/education/skytellers/moon-phases/
Hi everyone. I'm seaearthpony and I been lurking around this site for a few years. It wasn't until today when I decided to joined in. I don't consider myself to be a fan but a I do love MLP FIM.