Over the last 20 years, the study of Temporal Psychology and its relationship with a range of psychosocial indicators has increased exponentially. The present study makes use of recent advances in analytic methods and uses statistical inference via longitudinal examination of latent profiles through Latent Transition Analyses (LTA). The first 2 available waves of data from a longitudinal study in the United Kingdom were used to assess the following: (a) the factor structure of Adolescent Time Inventory−Time Attitudes Scale (ATAS) scores at Waves 1 and 2, (b) the viability of time attitudes profiles based on ATAS scores at both time points, (c) the degree of stability and/or transition between membership of these profiles at +12 months, and (d) the relationship between profiles and scores on 4 distal outcomes, including academic, social and emotional self-efficacy, and sensation seeking. Four latent profiles called Positives, Ambivalents, Negatives, and Negative-Futures were identified and their relationship with the 4 distal outcomes was examined. Results showed that time attitude profiles were unstable across the first year of high school. Furthermore, instability was explained by transitions to more negative profiles, and these transitions were associated with unfavorable outcomes.