Research on work and family has increasingly utilized daily diary studies to investigate the day-to-day associations of different work experiences with workers’ well-being and interactions with family. Notably, no daily diary studies have examined the daily associations between parents’ work experiences and child behavior. In addition, no study of low-income families has used this methodology. The daily job experiences of low-income workers, and the associations of these experiences with well-being, parenting and child behavior, may be different from those in higher-income families. This dissertation seeks to fill these gaps in the literature by examining daily associations between low-income mothers’ job characteristics and maternal mood, mother-child interaction, and child behavior. Results are presented as three studies. The sample includes 61 low-income mothers of preschool-aged children. Sample members completed one survey each day for two weeks. Study 1 examined the daily associations of workload with maternal and child outcomes. Results showed that the daily associations between workload and maternal mood, mother-child interaction and child behavior were curvilinear: both very low and very high workload days were associated with more negative outcomes. Workload had particularly negative associations with maternal and child outcomes if yesterday was a work day. Study 2 focused on the interpersonal aspects of work, including criticism and recognition from supervisors and support from coworkers. Each of the interpersonal aspects of work was related to mother-child interaction on the same day. Positive interpersonal experiences—supervisor recognition, coworker support—were associated with more positive mother-child interactions, while negative interpersonal experiences—supervisor criticism—were associated with more negative mother-child interactions. Finally, Study 3 investigated the daily associations of mothers’ work during nonstandard hours with maternal and child outcomes. Work during nonstandard hours was related to maternal and child outcomes in complex ways. Yesterday’s hours were associated with more positive outcomes for mothers and children, while today’s nonstandard hours were associated with more negative outcomes. Work during evenings was found to be more detrimental than work on weekends. Work during nonstandard hours exacerbated the negative effects of workload and supervisor criticism on maternal and child outcomes.