Meaning, the time starts at 0 and ends at 24. Unlike the standard time, time is based on 24 hours in the military time. For example, If it is one hour past noon, the time is written as 1:00 pm. In the United States and other countries, the standard time is based on 12 hours. When DST is followed, the time is called summertime. In the United Kingdom, standard time is also called normal time or wintertime. It also refers to the local time in an area when Daylight Saving Time is not observed. Usually, it is established in a region or country by custom or law. The standard time refers to the uniform time for places that lie in the same longitude. Arctic and Antarctic experience polar day when the Sun stays above the horizon for more than 24 hours and polar night when night lasts for more than 24 hours. The 12 hours of day and 12 hours of night happens only in places near the equator, for example the Philippines. Since we learned that the Earth’s axis is tilted and hence the equator is not facing the Sun directly, different places on Earth would experience unequal length of days and nights-not exactly 12 hours of day and 12 hours of night all the time.ĭifferent places in the Earth experiences different lengths of night and day. Rotation of the Earth causes night and day to alternate. After some time, the part of the Earth experiencing daylight will experience night. Because the Earth is rotating, the opposite side of the Earth away from the Sun will be experiencing night. This side of the planet will be experiencing daylight. Sunlight falls only on one side of the Earth. The Earth is slightly tilted or leaning on its side by 23.5O degrees while spinning toward the East. This is because the Earth is not spinning upright.
Similarly, the Earth has an axis but it is not straight up. The pointed tip that goes through the middle of the top is the top’s axis. The Earth’s rotation is like your favorite spinning toy top. Actually, the Sun and the stars do not move around us! The Earth is the one moving around the Sun. During the night, we then see the stars move slowly towards east to west direction also. Early morning, we see that the Sun rises in the east and sets by twilight in the west always. PM (post-meridiem = after noon) starts just after midday.AM (ante-meridiem = before noon) starts just after midnight.This diagram shows the cycle of a 24-hour day and the words we use to describe its parts. This means that 12am and 12pm have no meaning.
Daytime is from sunrise (this varies, but we can say approximately 6am) to sunset (we can say approximately 6pm). The day is divided into day(time) and night(-time).
0 kommentar(er)
