Rosh Chodesh May 2024. Start of month of tamuz on the hebrew calendar. The month of av is connected to the astrological sign of leo and is the only month ruled by the sun.
Rosh chodesh means the “head of the new [moon],” and indeed it is a day—or two—of celebration marking the start of a new lunar month. Av means father and is symbolized by the lion, one of.