Image 1:

The Earth rotates on its axis, covering 24 hours a day. The sun rises in the morning and sets again in the evening...

Picture 2:

The position of the observer on Earth from the point of view of the sun is therefore in the morning at approx. 06:00 a.m. - when he sees the sunrise (point 1), at noon at 12:00 p.m. - when the sun is above him (point 2) and in the evening, around 6:00 p.m. – when the sun goes down (point 3).

Picture 3:

The view is from a Northern perspective and the situation is as follows: At around 06:00 in the morning, the observer is hit by the first ray of sunshine (point 1), then the Earth rotates around its axis and thus its position towards the sun at around 12:00 a.m. the sun is above him (point 2), then the earth continues to rotate around its axis and thus his position away from the sun again and in the evening at around 6:00 p.m. when he sees the last ray of sunshine (point 3) – the sun goes down and night falls. At midnight, the viewer's position is opposite of the sun (point 4).

Picture 4:

The dial (a kind of Earth disk) of the clock should be an image of the Earth from the above perspective of the North Pole (which is middle). It is structured analogously to Picture 3 from the former consideration. It consists of the arrangement of 24 hours

At the North Pole is no offcial time.