This paper proposes a model called asynchronous time consistency (ATC) based on call-back clock method in distributed interactive simulation system (DIS). This model utilizes the asynchronism of different nodes’ clocks to re-distribute the time resources and improve the overall performance without compromising the system functionality. With this model, the paper firstly designs a fast approximation method based on the global delay information, and proves the effectiveness of the algorithm; secondly, according to the actual network condition, it also designs a fast iteration method based on the partial delay information. In the end, experiments are conducted and analyze to static and dynamic performance of these methods. Experimental results show that the ATC methods can improve the interaction performance effectively.