Introduction: Traumatic brain injuries are among the most common problems faced by doctors. Most often it is fourth cause of death, while it is first with people younger than 45 years of age. Materials and methods: The study included 134 patients with brain trauma treated at the Clicnic for neursurgery at the Clinical Hospital of Rijeka in the period of January 2011 to December 2015. The research is retrospective and the data was retrieved from the operating protocol of the Department of Neurosurgery, the hospital information system and radiology information system. In the processing of data, it was translated to known time in days, hours or minutes, and minimal, greatest, or average values were used. Results: The study determined the time required to treat a patient with brain trauma, especially processing of arrival in the emergency room to the radiographic examination, the time required by radiographic examination to the beginning of the operation, and finally the complete processing of arrival in the emergency room to the start of of the operation. The results showed no significant differences in the shortest interval treatment of patients, but also show differences of few hours in the longest interval treatment of patients, because of the different cases of patients over the years. Discussion: The study included 134 patients with brain trauma. Results are obtained by processing three time intervals, with analysis of data from 2011 to 2015 Conclusion: By analyzing the time intervals it was found that there is no significance when it comes to the shortest interval, but on the contrary it shows differences of few hours when it comes to the longest intervals due to the impact of the special treatment of each patient.