That depends on your latitude and your position in your time zone.
Here in Chicago, the answer is: about 10:15 PM.
There is nothing about the vernal equinox which is an intrinsic source of headaches. I could hypothesize that there is something you do in celebration of the vernal equinox that is not good for you, or alternatively, your mere expectation of having a headache at that time of year is enough to cause a psychosomatic headache.
The time of year, which puts us on opposite sides of the sun.
March 20, 2010, at 17:32 UTC (Universal Time).
The exact time of the vernal equinox varies from year to year. This year, the March equinox (the vernal equinox in the northern hemisphere, the autumnal equinox in the southern hemisphere) will occur on March 20, 2010 at 17:32 GMT. The web page below is the "Earth's Seasons" web page from the U.S. Naval Observatory.
It occurs in March, currently on March 20 each year. (the same date is the "vernal equinox" in the Northern Hemisphere)
Due east
The sunrise is due east on the equinoxes.
There is nothing about the vernal equinox which is an intrinsic source of headaches. I could hypothesize that there is something you do in celebration of the vernal equinox that is not good for you, or alternatively, your mere expectation of having a headache at that time of year is enough to cause a psychosomatic headache.
one year. the vernal equinox is on March 21, or the first day of spring. an equinox is when day and night is equal (12 hours daylight, 12 hours nighttime). there is a Vernal equinox in spring, and an autumnal equinox on the first day of autumn (or fall), September 21.
The spring equinox or the vernal equinox in the Northern Hemisphere is in March. It is the time of the year when the Sun crosses directly over the Earth's equator.
The time of year, which puts us on opposite sides of the sun.
March 20, 2010, at 17:32 UTC (Universal Time).
March 20, 2008, at 05:48 UTC (Universal Time).
1831 GMT (1:31PM Eastern) on March 20th .
March 20, 2010 at 17:32 GMT.
The spring equinox or the vernal equinox in the Northern Hemisphere is in March. It is the time of the year when the Sun crosses directly over the Earth's equator.
The exact time of the vernal equinox varies from year to year. This year, the March equinox (the vernal equinox in the northern hemisphere, the autumnal equinox in the southern hemisphere) will occur on March 20, 2010 at 17:32 GMT. The web page below is the "Earth's Seasons" web page from the U.S. Naval Observatory.