The construction industry represents a major factor in the development of countries. And since it has a great impact on the livelihood and well-being of mankind, there was an urgent need to use better sophisticated methods to improve the efficiency of this industry. And since there is a great importance to finish the project construction operations within the specified period of time, it was necessary to choose modern methods to solve this problem. It was also necessary to know the factors affecting the time, and try to make those factors work better by using that modern methods. One of these factors which affect time is risk management, which will be studied in the research. Building information modeling is considered as a modern and advanced method that has been applied in many countries to improve the efficiency of construction operations. As it has a great impact on time management for projects through the fourth dimension (4D).Also BIM can be used as a complete and integrated system in the construction processes, which leads to improved risk management for the project, and thus improved time management for the project. Thus, this research work is concerned with studying two departments of the projects, namely, time and risk management. It also explains the relationship between them and how risk management affects time management, and then studies how BIM is used in these two managements to improve them. In addition, practical studies are carried out on projects in which BIM has been used, and a comparison is made between the effect of BIM methods and regular methods on project time.