December 2017 Moon Phases

Above you can see our calendar of Moon phases for month. The name of a current phase and the approximate percent of an illuminated surface of the Moon visible from the Earth are also given.  

This moon phases calendar tool or moon schedule is an easy way to find out the lunar phase for any given month. The internal phase calculator is very accurate, but the images are approximations. Moon calculations are based on your time zone as specified by your computer.