The Dark of the Moon is Sept. 17th with the Sun and Moon both in Virgo. On the 18th Mercury backs into Virgo (Mercury is still retrograde)...so what does all this mean?
It's a great time to focus on, or start, detail-oriented projects. This includes activities related to "being in service" to others, (that's why there's so many nurses that are Virgo's.) Virgo's are an "Earth" sign which means this is a time that favors work, business and nature. We're coming up on Fall Harvest time, the Fall Equinox is on September 22.
If you know someone that's a Virgo, go a little easy on them if they seemed a bit overwhelmed or are scurrying to get things in order. Take Virgo's criticism with a grain of salt, the Sun, Moon and Mercury are all pushing them to get the world in order.