What time is it on the moon? The US and China disagree

If you stand outside the old Corn Exchange in Bristol, you'll see a clock with two minute hands above the entrance. One hand is set to London time, the other to Bristol's — ten minutes behind. The lag is because the sun reaches its peak over the second city a little bit after the first. Of course, when it comes to scheduling anything with bounds beyond one city, having two poses an issue. This is why, in 1840, the British company Great Western Railway imposed what it called "Railway Time"