Thats the equinoxes, halfway between longest and shortest days, happens twice a year: Once in the spring and once in the autumn
March 20 and September 23 are the two equinox days when there are 12 hours of daylight and 12 hours of darkness at any place on the Earth.
One day is equal to 24 hours therefore 3.5 days is equal to 84 hours.
144 hours is equal to 6 (six) days.
Two days equal 48 hours.
They're the same length on either side of the date of the equinox, which falls in March and September. In 2009 those dates were 3/20 and 9/22, respectively. Just count days on either side of those dates, to answer our question. What ends up happening, is that the first 20 days of March will have roughly the same length of daylight as the 20 days AFTER the September equinox (i.e. 9/22 thru 10/11). Similarly, the first twenty days of September will have the quality of daylight shown for the first 20 days after the spring equinox (3/20 thru 4/9)
The northern and southern hemispheres have equal hours of daylight and darkness during the equinoxes, which occur around March 20-21 and September 22-23 each year.
It depends on where you are Not Really, If you live on the Equator, Every 24 hour period has 12 hours of daylight, and twelve hours of darkness. For every one else, there are only two 24 hour periods during the year When daylight hours equal night hours. These two days are the Vernal and Autumnal Equinox. (Equinox means equal). If you account for the differences in the number of daylight and dark hours in a 24 hour period, over an entire year, the average is 4380 hours each for daylight and darkness.
Thats the equinoxes, halfway between longest and shortest days, happens twice a year: Once in the spring and once in the autumn
March equinox and September equinox : Daylight and darkness are of equal length on both the Vernal Point (Spring/March 20th 2011) and the Autumnal Point (Autumn/September 23rd 2011) .
No. At an equinox, which happens in March and September, the amount of daylight and darkness are about equal.
The lengths of days are equal at the equator. This is because the equator is the line that divides the Earth into the Northern and Southern Hemispheres, where the axis of rotation is perpendicular to the plane of the equator. This results in roughly 12 hours of daylight and 12 hours of darkness throughout the year.
These are the spring and autumn equinoxes, and are days when the daylight and darkness are equal.
March 20 and September 23 are the two equinox days when there are 12 hours of daylight and 12 hours of darkness at any place on the Earth.
The equator experiences approximately 12 hours of daylight and 12 hours of darkness throughout the year due to its position on the Earth's axis. This means the equator has days and nights of equal length.
21 April and 21 September.
The northern and southern hemispheres have equal daylight and darkness on the equinoxes, which occur around March 21st and September 23rd each year. These are known as the spring (vernal) and autumnal equinoxes, respectively.