This chapter summarises some results of the International Time Perspective Research Project, which is a collaborative cross-cultural study of time perspective carried out in 24 countries. The highlights of structural equivalence assessment study are presented, showing the cross-cultural invariance of 36 items of the Zimbardo Time Perspective Inventory (ZTPI) scale. The associations between country-level ZTPI scores and other culture-level indicators, including the Human Development Index and Hofstede cultural dimensions, are presented and discussed. Using hierarchical cluster analysis, five distinct profiles of time perspective were found (future-oriented, present-oriented, balanced, moderately fatalistic, and negative), and significant differences in the prevalence of these profiles across cultures were found. Implications and perspectives for future research are discussed.