A lot of people think the best time to view the sky is during the full moon because, well, you can see the moon. However, the full Moon washes out the sky, like the sun does in the day, but to a lesser extent. This fades out dim objects or makes them invisible to the eye and especially to the telescope. Also details on the moon disappear closer to the full moon because the shadows get smaller just like noon here on earth.

Dates from 4 days after the full moon and up to 5 days after the new moon are best. use this moon calendar link below to find the best dates. just pick the month you are thinking about and look for the dates with the least moon visible.