May’s New Moon in Gemini occurs at 3:44 PM EST on Thursday the 25th, and you can do your New Moon ritual on either the night of Thursday the 25th or Friday the 26th at any time. I’m very happy that this New Moon has more time in which to observe it than some of the previous ones this year. The only hiccup is if you try to observe the New Moon early on Wednesday the 24th, the Moon will be void-of-course from 3:08 PM until 8:15 AM on Thursday the 25th when it enters Gemini.
The two week manifestation point for this New Moon is June 9th with the Full Moon in Sagittarius. Its six month Full Moon will happen on December 3rd 2017 with the Full Moon in Gemini.
My guide, Witch’s Guide to New Moon Magick, can be found on the site here; this post is a companion to that guide. If you’re new to Moon magick that’s a great place to begin.