Why is there different time zones in different parts of the world? What's the time zone in your country?​

We have different time zones because the sun stays still but our planet earth rotates, so as the Earth rotates everyone is either receiving daylight or night! I am in Pacific daylight time :)

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).