Who else should control time? Before the railroads, most every place had its own version of what time it was - that just doesn't work well for a global world.

At one time the railroads (big business) controlled time - not sure that's a good idea ... big business might get some braindead idea of reducing the day to like 20 hours by making each hour longer while still expecting folks to work for the same pay and/or perhaps squeeze in a 13th month so the various utilities, landlords, etc can extract another month of revenue from folks, but I digress.

Ron