Because Ciaran Nicholls blocks out the sun
It's the average length of the "apparent solar day" throughout the year, 24 hours exactly for planet Earth.
The average length of the day is usually just called "day".
The length of a day would increase and the number days in a year would decrease.
Probably whenever there is a solar eclipse.
The time based on the average length of a day throughout a year is called Mean Solar Time. This time standard is used in civil timekeeping to account for variations in the length of a solar day due to the Earth's elliptical orbit and axial tilt.
yes. All the way around the equator the day length doesn't change.
the length of a day would be longer
Yes.
Maximum time of Day in solar syatem is VENUS, Minimum JUPI..
are affected by cloud coverage and day length"
It is about 117 Earth days (for the "solar day") or 243 Earth days (for the "sidereal day").
Solar eclipses occur when the moon moves in front of the sun, causing the suns light to be temporarily blocked. Since the sun is only visible from the Earth's surface during the day, this is the only time that a solar eclipse can occur.