0 9 * * 1-5 /usr/bin/morning-report.sh
0 9 * * 1-5 for Monday-Friday at 9 AM. Perfect for business hour automation and work day reports.Day of week: 0=Sunday, 1=Monday, 2=Tuesday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday. So 1-5 is Monday through Friday.
Use 0 9 * * 0,6 for Saturday and Sunday, or 0 9 * * 6,0 (same thing).