This study examines the effect of flexitime on employee performance in commercial banks in Kenya, focusing on Nakuru County. Anchored in the Work-Life Balance Theory, the research employed a quantitative correlational design, collecting data from 84 respondents (bank general managers, assistants, and human resource managers) across 28 commercial banks using structured questionnaires. A census approach ensured comprehensive data collection, achieving a 74% response rate (n=62). Findings revealed a strong positive and statistically significant relationship between flexitime and employee performance (r=0.764, p<0.01). Regression analysis indicated that flexitime accounts for 58% of the variance in employee performance (R²=0.58). The regression coefficient (β=0.120, p<0.001) confirmed that a one-unit increase in flexitime implementation leads to a 0.120-unit increase in employee performance. These results support the rejection of the null hypothesis, confirming a significant positive effect of flexitime. The study concludes that flexitime enhances task completion, work-life balance, job satisfaction, and reduces absenteeism, thereby improving employee performance. It recommends that commercial banks in Kenya adopt or expand flexitime policies to boost performance and competitiveness. Limitations include the focus on Nakuru County, suggesting future research across other regions and sectors.