The objectives of the present dissertation were: (1) determine the relationships between time use in physical vs social leisure activities (PLA - SLA), and cognitive vs emotional leisure activities (CLA - ELA) by older adults age cohort (60-69, 70-79 and 80-plus yrs.); (2) ascertain the role of sex in moderating the relationship between time use in PLA-SLA and CLA-ELA by older adults age cohort; and (3) assess how employment status mediates the relationship between time use in PLA-SLA and CLA-ELA by older adults age cohort with moderation by sex. Secondary data was obtained from the 2019 American Time Use Survey database. Applying a cross-sectional design, data were analyzed using a linear regression model in SPSS version 27 and PROCESS Macro with Hayes Model 1 and 59. We identified the extent of the conditional indirect moderation effect of sex and the indirect employment status mediation effect moderated by sex in the relationship between PLA-SLA and CLA-ELA by older adult age cohorts. An index of moderated mediation was used to test the significance of each effect. The 80-plus yrs. cohort SLA time use was greater than in PLA across cohorts. Sex moderation showed a stronger effect in men by substantially decreasing their …