As usual the problem is Americans. We won't learn metric and refuse to use the 24 hour clock. It removes ambiguity and solves so many issues but since it would

As usual the problem is Americans. We won't learn metric and refuse to use the 24 hour clock. It removes ambiguity and solves so many issues but since it would require people to stop and think what 1600 means for the first few months it will never happen here.