We examine the effect of commuting distance on workers' labour supply patterns, distinguishing between weekly labour supply, number of workdays per week and daily labour supply. We account for endogeneity of distance by using employer-induced changes in distance. In Germany, distance has a slight positive effect on daily and weekly labour supply, but no effect on the number of workdays. The effect of distance on labour supply patterns is stronger for female workers, but it is still small. © 2010 Elsevier Inc.