Delay discounting describes the phenomenon whereby the subjective value of a reward declines as the time until its receipt increases. Individuals differ in the subjective value that they assign to future rewards, yet, the components feeding into this appraisal of value remain unclear. We examined whether temporal psychological distance, i.e. the closeness one feels to the past and future, is one such component. English speakers in the USA and Mandarin speakers in China completed a delay discounting task and organized past and future world events on a canvas according to their representation of the event's temporal position relative to themselves. Previous work has identified linguistic and cultural differences in time conception between these populations, thus, we hypothesized that this sample would display the variability necessary to probe whether temporal psychological distance plays a role in reward valuation. We found that English speakers employed horizontal, linear representations of world events, while Mandarin speakers used more twodimensional, circular representations. Across cultures, individuals who represented the future as more distant discounted future rewards more strongly. Distance representations of past events, however, were associated with discounting behaviors selectively in Mandarin speakers. This suggests that temporal psychological distance plays a fundamental role in farsighted decision-making. Time is highly abstract and intangible in that it cannot be seen, touched, heard or sensed directly, yet it is an integral component of daily decision-making. When choosing between attending a concert tonight or a weekend getaway next month, one must weigh the value of each option against the backdrop of time. Does one month feel as though it is right around the corner, or a decade away? In general, humans prefer immediate rewards to delayed rewards, a phenomenon known as temporal discounting 1,2. Previous research has shown, however, that individuals vary substantially in the degree to which they discount future rewards. Variability in discounting behavior has been associated with socioeconomic status 3 , feelings of self-continuity 4,5 , and several psychiatric disorders 6-10. Neural activity in the ventral striatum, medial prefrontal cortex, and posterior cingulate cortex has already been shown to track subjective value during temporal discounting 1 , but the key factors that feed into this construction of value are not well understood. Individuals' subjective perception of the time delay to receive a reward is one factor that has been shown to play a role in temporal decision-making 11-14. This line of work suggests individuals do not accurately represent objective changes in duration and instead represent future time horizons nonlinearly 11. For instance, though 12 months is objectively twice as long as 6 months, it is often perceived to be less than two times as long 12. In the current study, we focus on the role of past and future psychological distance in guiding discounting decisions, rath...