Which of the following is not a power of the president

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others  

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: