24 hours
The time from sunrise to sunset is about 12 hours and 7 minutes at the equator and within a few minutes of that most other places, but it's over 24 hours at both poles that day.
If Earth had no atmosphere, there would be exactly 12 hours from sunrise to sunset just about everywhere (but nobody would be around to see it).
An equinox occurs when the length of the day is equal to the length of the night. Here on Earth, it occurs around March 21 (the Vernal Equinox) and September 21 (the Autumnal Equinox).
The day of the year with the longest daylight is typically June 21st, known as the summer solstice in the Northern Hemisphere. It is the day when the Earth's axial tilt is in such a way that the North Pole is at its maximum tilt towards the sun. However, it is important to note that the exact date may vary slightly depending on the specific location.
On September 21st everywhere in the world has the same amount of sunlight. This also happens on March 21st. Also on the 21st of March and September the daytime and the nighttime are the exact same length.
Only near the North Pole, where the Sun goes round and round horizontally all day and all night, rising on March 21 and setting on September 22.
first day of winter,[Jan 21ish] and first day of summer [July 20ish] I think And, you would be WRONG! Those dates are for Summer and Winter solstice. The days of equal length are called the...?(wait for it...) EQUINOX! March 20 and September 22, roughly.
From around 20 March to around 22 September, the sun is directly over the northern hemisphere. From around 22 September to around 20 March, the sun is directly over the southern hemisphere.
An equinox is when day and night are of equal length (about 22 September and 20 March).
The correct day of the week for September 22 1947 is Monday
22 September 1959 was a Tuesday.
September 22, 1984 was a Saturday.
September 22, 1984 was a Saturday.
The first day of autumn/fall falls on the date when day and night are equal in length. The precise date actually varies. This year it was September 22. That will be the date also in 2009. But in 2010 and 2011, that date will be September 23. In 2012 and 2013, it will again be September 22.
22 September 1953 was on a Tuesday.
22 September 1990 was a Saturday.
22 September 1943 was a Wednesday.
September 22 2002 was a Sunday.
September 22, 1950 fell on a Friday.