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Is it true that officially, everywhere above the equator has winter starting around 21st of december. (solstice)

2006-10-21 16:51:22 · 14 answers · asked by Anonymous in Science & Mathematics Weather

Since when?

2006-10-21 17:03:02 · update #1

I have been knowing the dates of Solstice

2006-10-21 17:32:20 · update #2

I know winter solstice is around 21th of Dec. which marks the shortest day and the longest night of the year but ...

2006-10-21 17:42:23 · update #3

14 answers

In a sense, the answer is yes and no. Yes, because winter actually starts at a precise instant. This is the moment of the December solstice, when the geographic North Pole is inclined maximally towards the Sun. At this point in time, winter starts everywhere in the Northern Hemisphere. However, the answer is also no, because at that particular moment, it is two different calendar days in different parts of the world, due to time zones and the International Date Line.

2006-10-26 07:04:38 · answer #1 · answered by DavidK93 7 · 1 0

The start of the seasons can start over a three day period. And the time is usually referred to universal coordinated time. So as in one answer, if winter starts in Dallas in Central time, it still starts in eastern time at the same time but clocks show an hour later.

The Earth is tilted by 23 1/2 degrees. During the Summer months, the north is pointed toward the Sun allowing more direct sunlight.
During the winter, we are tilted away from the sun so the sunlight
is more indirect as the sun seems lower in the sky.
There are 4 cardinal points in our calender;
Summer solstice, autumnal equinox, winter solstice and vernal equinox.
Beginning of summer, fall, winter and spring. This coincides
with the position of earth as it goes around the sun.
Each of the cardinal days can take place over a three day period,
20th, 21st, 22nd. On June 22nd, summer solstice, it is the longest day of the year. It is also the day that the north pole is pointing directly at the sun. The next day it will have passed this point and start pointing away from the sun, hence, the days will also start getting shorter. For further info, feel free to email me, orion_1812@yahoo.com

2006-10-28 04:40:55 · answer #2 · answered by orion_1812@yahoo.com 6 · 0 0

Seasons are just human concepts that help us understand how/when the weather changes. We define the start of winter as being the date and time of the Winter Solstice, and that only happens on one day. That same day is the Summer Solstice in the southern hemisphere.

2006-10-21 17:09:22 · answer #3 · answered by nospamcwt 5 · 1 0

Yes...but...

If the Winter starts at 12:00 am on the 21st of December in Central Standard time (Say Dallas) , it wouldn't happen in the Eastern Standard Time (Say NY) till an hour later.

2006-10-21 17:02:44 · answer #4 · answered by phoenix 3 · 0 0

In the Northern Hemipshere, winter officially begins on the Winter solistice. That occurs at a specific time, stated to the minute. Usually it's December 21st but can occur on surrounding days. Regardless, each time it occurs, there's a pinpointed time it occurs, like sunset.

2006-10-22 14:26:37 · answer #5 · answered by Isles1015 4 · 0 0

Yes. That's the shortest day for all of the northern hemisphere.

2006-10-21 16:53:49 · answer #6 · answered by Kuji 7 · 0 0

Yes it is. The season of "Winter" is now defined by a calendar date, regardless of the weather.

2006-10-21 16:53:05 · answer #7 · answered by cyanne2ak 7 · 0 0

In Calgary winter can happen any time of year.

2006-10-21 18:59:08 · answer #8 · answered by Anonymous · 0 0

defined by a calendar date the same every year

2006-10-22 11:26:30 · answer #9 · answered by Stan the man 7 · 0 0

yes

2006-10-21 16:53:03 · answer #10 · answered by kamie h 1 · 0 1

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