Research has shown that time spent with peers is related to delinquency, but little is known about the conditions under which spending time with peers is most related to delinquent behavior. In this study, we contrast different categories of time spent with peers, using detailed information about the activities and whereabouts of 843 adolescents in The Hague, the Netherlands. Our findings reveal substantial differences. Time spent with peers appears to be independently related with delinquency only when it combines at least two of the following risk-inducing conditions: just socializing, being in public, and being unsupervised.