This research was designed to investigate whether organizational stress had an intermediary role in the effect of Hofstede cultural dimensions on time management. Near East University from Cyprus, which represents the individual culture, and Hakkari University from Turkey representing the collectivist culture were selected for the research analyses. In all, 638 administrative and academic members from both universities were interviewed face-to-face on a voluntary basis, and data were collected by the simple random sampling method. The research findings suggest that time should be managed after identifying the type of culture--individualistic or collectivist--to decrease the level of stress experienced by university staff. In other words, Hofstede's cultural dimension has an impact on time management, and organizational stress has a partial mediation effect on this dimension. Although the variables in the study have been studied in the literature together with many different factors, Hofstede is significant in terms of determining the role of organizational stress in the effect of cultural dimensions on time management. The effectiveness of Hofstede's cultural dimensions through organizational stress in time management allows business and project plans to be carried out in a way that manages individual, team or departmental performances taking into account the organizational stress elements. It is considered that this study will particularly be effective in medicine, project management, and independent auditing.