This study investigated influence of work schedules on job satisfaction among employees of NASCO Group, Jos North, Plateau State, Nigeria. Recognizing the critical role of employee well-being and productivity in organizational success, the research determined how different work schedule namely fixed, flexible, and shift schedules impact various dimensions of job satisfaction. A quantitative research design was employed, utilizing a structured questionnaire administered to 150 employees of NASCO using a cross-sectional survey, Job descriptive index (JDI), (Smith et al 1969) and Minnesota Satisfaction Questionnaire (MSQ). Weiss, et al 1967). Data collected was analyzed using descriptive statistics (frequencies, percentages, means, standard deviations) showing a significant difference in job satisfaction scores between the two groups.

Employees on a fixed day schedule reported a higher mean job satisfaction score (M = 4.21, SD = 0.68) than employees on a rotating shift schedule (M = 3.65, SD =

0.82). The t-test result was statistically significant (t (148) = 5.47, p < .001). The inferential statistics (correlation and multiple regression analysis) ascertained the relationships and predictive power between work schedules and job satisfaction, indicating a positive and statistically significant correlation between work schedule flexibility and job satisfaction (r =

.482, p = .001), while rigid or unpredictable shifts contributed to lower satisfaction levels with negative correlation between the number of hours worked per week and job satisfaction (r = -.095). The findings are anticipated to provide valuable insights for NASCO management, human resource practitioners, and policymakers in designing optimal work arrangements that enhance employee well-being, reduce turnover, and improve organizational performance within the Nigerian manufacturing context.