The three weeks between the 17th of Tamuz and 9th of Av, during which semi-mourning customs apply.
The three weeks between the fasts on the 17th of Tamuz and 9th of Av, during which semi-mourning customs apply. The final nine-days are observed with more intense mourning, culminating with the fast of tisha-bav.
Common customs include refraining from listing to music and not shaving or getting a haircut.