Research on time zones

In class we got in groups for people who are agree with the abolishment of time zones, keeping time zones, and people who weren't sure of there side yet. I was in the group of getting rid of time zones. I think it is just more work, and to many rules to keep time zones. We should keep it simple and have the world on the same time except it would be like one here in the afternoon and one at night somewhere else. Here are some other reasons why we should get rid of it. They don't even follow the rules. In Australia there time zones were only 30 minutes apart instead of an hour. Some places are also 45 minutes apart too. In North Korea they changed there time half an hour back just so they were different. It was much more confusing then because it was just a half hour difference. This is why we should just have one time around the world and then no one can make there own rules or change their time just to be different. Everyone can be the same and it would be simple.