On 22-23 September.
In the southern hemisphere, the first day of spring is marked by the spring equinox, which typically occurs around September 22 or 23. In 2013, the first day of spring fell on September 23. This date signifies the moment when day and night are approximately equal in length as the sun crosses the celestial equator.
The Earth is divided into four hemispheres - Northern Hemisphere, Southern Hemisphere, Eastern Hemisphere, and Western Hemisphere - based on lines of latitude and longitude. The equator divides the Northern and Southern Hemispheres, while the Prime Meridian and the International Date Line divide the Eastern and Western Hemispheres.
The shortest day of the year occurs around December 21st in the Northern Hemisphere and around June 21st in the Southern Hemisphere. This day is known as the winter solstice in the Northern Hemisphere and the summer solstice in the Southern Hemisphere.
There is no such meridian. Each and every one of the infinite number of meridians of longitude lies half in the northern Hemisphere and half in the southern.
From the point of view of the northern Hemisphere and everyone in it, December 21 is the beginning of Winter, and the position of the sun on that date is the Winter Solstice. From the point of view of the southern Hemisphere and everyone in it, December 21 is the beginning of Summer, and the position of the sun on that date is the Summer Solstice.
The official date of the First day of Spring in the Southern Hemisphere is September 22nd or 23rd.
Ostara celebrates the Spring Equinox. In the northern hemisphere, it will be on March 20 and in the southern hemisphere it will be on September 22.
In the southern hemisphere, the first day of spring is marked by the spring equinox, which typically occurs around September 22 or 23. In 2013, the first day of spring fell on September 23. This date signifies the moment when day and night are approximately equal in length as the sun crosses the celestial equator.
The spring equinox marks the beginning of spring. This is a date where night and day are exactly equal. In the northern hemisphere, this day falls on or around March 21st. In the southern hemisphere, this day falls on or around September 21st.
In 1964, spring began at 14:10 UTC on Friday the 20th of March in the northern hemisphere and at 00:16 UTC on Wednesday the 23rd of September in the southern hemisphere.
In 1971, spring began on 21st March at 6:38 AM UTC in the northern hemisphere and on 23rd September at 4:45 PM UTC in the southern hemisphere.
It all depends on where you are, the northern hemisphere or the southern one. Generally speaking, in the northern hemisphere, September is considered the fall while in the southern hemisphere, September would be considered spring. However, the equinox marks the changes of seasons and September 22nd or 23rd is the normal date for the equinox. Therefore, prior to the equinox, September is technically summer in the northern hemisphere and changes to fall at the equinox. Conversely, in the southern hemisphere, prior to the equinox, September is considered winter and changes to spring at the equinox.
Spring begins at different times, depending on whether one is north or south of the equator, and the actual time varies with the changes in Earth's orbit, and the fact that the solar year exceeds the calendar year by 1/4 day each year.2011 -March equinox (spring begins in the northern hemisphere): March 20, 2011 (23:21 UTC)September equinox (spring begins in the southern hemisphere): September 23, 2011 (09:04 UTC)2012 -March equinox (spring begins in the northern hemisphere): March 20, 2012 (05:14 UTC)September equinox (spring begins in the southern hemisphere): September 22, 2012 (14:49 UTC)
The first day of spring coincides with the equinox (days and nights both 12 hours long). In the northern hemisphere the equinox is around the end of March. In the southern hemisphere it starts about the beginning of September. In the US the first day of Spring will be March 20, 2010. In Australia, the first day of Spring will be 1 September 2010.
March 20 (UTC) - the same date is the "vernal equinox" in the Southern Hemisphere.
In the northern hemisphere ,in the summer, its June 21st. but its winter in the southern hemisphere. In the northern hemisphere ,in the winter, its dec. 21st. but in the southern hemisphere its summer.
21st June