In addition, ethyl butyrate is often also added to orange juice, as most associate its odor with that of fresh orange juice. Ethyl butyrate is one of the most common chemicals used in flavors and fragrances.n addition, ethyl butyrate is often also added to orange juice, as most associate its odor with that of fresh orange juice. Ethyl butyrate is one of the most common chemicals used in flavors and fragrances.
We have different time zones because if we all set our clocks to the same time noon would be the middle of the day in some places, but it would be morning, evening and the middle of the night in others. Since different parts of the Earth enter and exit daylight at different times, we need different time zones.
There are a total of 40 time zones in the world. There are four time zones in the United States: Pacific, Mountain, Central and Eastern. There is a one-hour difference between Washington State and cities located in the Mountain Time Zone, a two-hour difference to the Central Time Zone, and a three-hour difference to the Eastern Time Zone.