Constraints on the transit duration (3﹩{\tau }_{1}﹩+3﹩{\tau }_{2};﹩ top panel) and the ratio of the egress to ingress times (﹩{\tau }_{2}﹩/﹩{\tau }_{1};﹩ bottom panel) of the transits of WD 1145+017 observed from the ground; in both panels the horizontal dashed line shows the weighted mean of the transit duration (top) and egress to ingress times (bottom), while the dotted line shows the 1σ uncertainty in these values. The transit duration and the ratio of the egress to ingress times display evidence that they may not be constant from eclipse to eclipse.