That depends on what you're relating the spin to. If the Earth did not spin relative to space itself, there would be a diurnal cycle. However, each 'day' would last half a year, with the other half occupied by one night. If the Earth did rotate, but did not rotate relative to the Sun, we would be in much the same situation the Moon is in with us - one face always showing to the Sun, the other always hidden. In this scenario, we would have no diurnal cycle.
Earth's rotationEarth's rotation
Earth is currently in its precession cycle, with the axis slowly wobbling like a spinning top. This cycle lasts about 26,000 years and affects the orientation of Earth's axis with respect to the stars.
each day at noon
The Earth won't, actually can't stop spinning in a human timescale.
You can observe Earth's rotation by watching the movement of the stars in the night sky. As Earth rotates, the stars appear to move across the sky in an eastward direction. This phenomenon is known as diurnal motion and is evidence that the Earth is spinning on its axis.
Diurnal cycle
Diurnal cycle
The spinning of the Earth affects the Earth's water by creating currents and winds. The spinning of the earth is necessary to complete the water cycle and establish weather patterns.
Earth's rotationEarth's rotation
Seasonal cycle
Earth's rotationEarth's rotation
== 1. (biology) belonging to or active during the day; "diurnal animals are active during the day"; "diurnal flowers are open during the day and closed at night". 2. Having a daily cycle or occurring every day; "diurnal rhythms"; "diurnal rotation of the heavens"; "the diurnal slumber of bats".
Very little as it is spinning at a constant speed. However, the moon does affect the Earth's seas, greatly.
Earth is currently in its precession cycle, with the axis slowly wobbling like a spinning top. This cycle lasts about 26,000 years and affects the orientation of Earth's axis with respect to the stars.
Day is an arbitrary word for the period of light in the Earth's diurnal cycle. When the sun is "up" there is more light, so it is "day"
During the diurnal cycle, which spans roughly a 24-hour period, there are various changes that occur in the environment and living organisms. This includes fluctuations in temperature, light intensity, and atmospheric pressure, as well as corresponding behaviors and physiological adaptations in animals and plants to optimize their survival and reproductive success. For example, some animals are more active during the day while others are more active at night, depending on their feeding and predatory habits.
Because earth is so big that we can't feel it spinning unless you are at the middle of the core.