At 8:30 p.m. local time, Jones Lang LaSalle and LaSalle Investment Management offices will join with thousands of other buildings in turning off non-emergency lighting for an hour, effectively darkening skylines in observance of energy conservation efforts around the world. The firm’s employees are also being encouraged to support the cause by switching off lights in their respective homes. In addition to endorsing the campaign through its offices, Jones Lang LaSalle is partnering with clients in thousands of cities and towns all over the world to help them show their support. Jones Lang LaSalle manages 2.6 billion square feet of commercial property owned by corporations and investors in the region.