This is due to the Earth's rotation on its axis. As the Earth rotates, different parts of the planet are exposed to the sun's light at different times, creating day and night. This cycle continues as the Earth moves around the sun, causing changes in the length of daylight throughout the year. So, when it is night in one part of the country, it is day in another part because of the Earth's rotation and its orbit around the sun.
This is due to the Earth's rotation on its axis. As the Earth rotates, different parts of the planet are exposed to the sun's light at different times, creating day and night. This cycle continues as the Earth moves around the sun, causing changes in the length of daylight throughout the year. So, when it is night in one part of the country, it is day in another part because of the Earth's rotation and its orbit around the sun.