The aims of the present study were to (i) analyze and compare the factor structure of the Future Time Perspective (FTP) scale using exploratory factor analysis (EFA) and confirmatory factor analysis(CFA) and (ii) identify the age differences in the factors of FTP. Participants were 416 young, middle-aged, and older adults, aged 19 years and older, residing in the Seoul metropolitan, Daegu, and Kyungbook areas, and were randomly divided into two groups. The EFA results indicated two factors: FTP-opportunity and FTP-limitation, and the CFA results supported this model as the best-fitting model. Furthermore, young adults perceived their future as having more opportunities and fewer limitations compared to middle-aged and older adults. These results suggest that the FTP pattern is reversed in middle-aged adults. These findings contribute to the understanding of FTP in adulthood.