Where the full or waxing moon is seen as a source of positive energy, many traditions hold that the new or waning moon bears the opposite effect.
As such, the new or waning moon is thought to be a time when negative or malevolent works should be performed - a time for curses, for the darker elements and influences to be about.
Consequently, few witches or covens hold regular gatherings or celebrations under the new or waning moon.
Nonetheless, it isn't a bad idea to be aware of the timing of the waning and new moon: during the waning moon and up to the new moon, one can be wary of dark or negative influences.
The next new moon is Saturday, January 5, 2019 at 5:28 PM.