Why is there day and night phenomenon?

The phenomenon of day and night born by the Earth rotates itself around the axis .

The Earth's sphere is always half bright by the Sun, so it was born day and night, because the Earth rotates around its axis, so every surface of the Earth is illuminated by the sun.

Explain the phenomenon of day and night on Earth.

The Earth has a spherical shape and rotates around its axis from west to east, so at the same time, the people of different meridians will see the Sun at a different height, the different meridian points will have different hours each other, (local time or solar time).

In order for international timers and transactions, the Earth's surface is divided into 24 time zones, each time zone is 15 degrees long. Time in zone 0 will be taken as international time or GMT (Greenwich Mean Time). Vietnam is the 7 time zone.

When the Earth rotates around its axis, all locations of different latitudes on the Earth's surface (except for the two poles) have different long velocities and divert from west to east. Therefore objects moving on the Earth's surface will be deviated from the original direction.

Video simulates day and night rotations.