CT3 date and time functions
BOM()
_B_egin _O_f _M_onth
BOQ()
_B_egin _O_f _Q_uarter
BOY()
_B_egin _O_f _Y_ear
EOM()
_E_nd _O_f _M_onth
EOQ()
_E_nd _O_f _Q_uarter
EOY()
_E_nd _O_f _Y_ear
STOD()
Convert ANSI date string to Harbour date