Curfews have been used to curb juvenile crime , typically the hours of 10 pm to 6 am .
Only 15 % of such crimes occur during curfew hours , while most ( 63 % ) juvenile crime occurs on school days .
Curfews have been used to curb juvenile crime , typically the hours of 10 pm to 6 am , but only 15 % of such crimes occur during curfew hours , while most ( 63 % ) juvenile crime occurs on school days .