About one half, 50%. The other half is night time.
about 50% or half ;)
While the Earth is always notionally 'facing' the Sun, due to its rotation about its axis, only about half of it is lit directly at any given time. This is called daylight, those on the surface experiencing daylight call it day.
As Earth rotates, the side of Earth that facing the Sun spends more time in daylight, while the opposite is true for the other side.
Daylight duration refers to the total length of time over a specified period, be it day, week, month or years. Sunshine duration refers to the duration of sunlight over a given period of time.
Half of the Earth at a time.
50%
It is an artificial arrangement, done to accommodate social norms. In the UK, correct astronomic time is in the Winter , when the country is on GMT. However, in the Summer, without day saving time, the Sun would rise at approximately 3:30 am. and set at about 8:30 pm. This means that half of your sleeping time is daylight ( approx. 4 hours) , and conversely about 3 hours of your social time in the evening is in the dark. So with day-saving time , 1 hour in the UK, sunrise is about 4:30 am and sunset is about 9:30 pm. This allows for normal work and social time to be wholly in the day-light. There is also the 'animal' response to light. The human animal is a diurnal animal, and finds it easier to arise in the morning , when there is day light and will go to bed when darkness falls, in the late evening. Couple all this to the fact that, be it Winter or Summer, we go to work/school at 8:00/9:00 am in the daylight and come home in the daylight.
perpetual daylight is act of the earth in day time
Because it takes a longer time to rotate than earth does
While the Earth is always notionally 'facing' the Sun, due to its rotation about its axis, only about half of it is lit directly at any given time. This is called daylight, those on the surface experiencing daylight call it day.
The sun is the essential cause of daylight on the earth. Each day, the earth rotates with one side facing the sun all the time.
At any given time, half (50%) of Earth is exposed to sunlight.