If you think you actually gained or lost an hour of sunlight, then you need to go curl up in the corner, suck your thumb, and wonder how legislative edicts actually change the laws of physics.
If you understand that your boss didn't want to say, "Get up earlier!" or "Get up later!" and put the responsibility for that dictum upon your politicians, then you're beginning to get the picture.
Any company with reasonably intelligent decision makers, with an around-the-world clientele, would publish and adhere to UTC. Converting, if you aren't on UTC, is a minor pain in the ass. It requires an ability to add and subtract very small numbers.
The only problem will be if WGT decides to institute deviations for time as well as for trajectory and wind. Then, you're on your own.