Literature review of published articles in recent years revealed that despite numerous conducted studies concerning time management, understanding of these two groups about nurse administrators’ time management has been less studied. A comparison of the perceptions of these two groups can help us detect and reveal nurse administrators’ time management. Since time management is one of the managerial skills of the managers and is critical in achievement of organizational goals, in the present study, the researcher tried to compare time management behaviors of head nurses from the perceptions of head nurses and staff nurses employed in Tehran Social Security Hospitals, Iran in 2011.