Time isolation means the item isolated from others can be easily recalled in serial order short-term memory. Time-based accounts and event-based accounts can be used to explain time isolation. According to time-based accounts, items that are temporally isolated from their neighbors during list presentation are more distinct and thus should be recalled better. Event-based theories, by contrast, deny that time plays a role at encoding and predict no beneficial effect of temporal isolation, although they acknowledge that a pause after item presentation may afford extra opportunity for a consolidation process such as rehearsal or grouping. SIMPLE model is used to try to explain time isolation on basis of integrating the two kinds of accounts. Although SIMPLE, by default, relies on time-based representations, its architecture is sufficiently flexible to permit a comparison of those two accounts within a common computational framework. Because neither account included any consolidation processes, the modeling instantiates a procedure in which rehearsal is eliminated by AS. The present article tried to explain time isolation in serial order short-term memory through SIMPLE model.