<p>Working time reduction has been proposed as a policy to improve human well-being and reduce environmental harm, and research has confirmed the relationship between working hours and these outcomes. The One Welfare framework argues that human, animal, and environmental well-being are interconnected, but so far there has been no analysis of the effect of working time on animal welfare. In this study I analyze shelter save rates and working hours by state. Results from a regression analysis show that higher hours worked per week are associated with lower save rates in animal shelters. These results suggest that a reduction in working time may be a viable policy to improve human, environmental, and animal well-being.</p>