Timing the Sun's entry to 00° Cancer
The Summer Solstice marks the most prolonged period of daylight in the Northern Hemisphere. From that point, days become shorter until day and night are equal at the Autumn Equinox. Then it is on to the longest night of the Winter Solstice.
21 Jun 2021
3:32:02 AM, UTC +00:00:00
4:32:02 AM GMD -01:00:00
20 Jun 2021
Boston, Massachusetts USA
11:32:02 PM EDT +04:00:00
New Orleans, Louisiana USA
10:32:02 PM CDT +05:00:00
Santa Fe, New Mexico USA
9:32:02 PM MDT +06:00:00
Reno, Nevada USA
8:32:02 PM PDT +07:00:00
Kahului, Hawaii USA
5:32:02 PM AHST +10:00:00
The summer solstice, also known as the estival solstice or midsummer, occurs when one of the Earth's poles has its maximum tilt toward the Sun. It happens twice yearly, once in each hemisphere. For that hemisphere, the summer solstice is when the Sun reaches its highest position in the sky and is the day with the most extended period of daylight. On the summer solstice, Earth's maximum axial tilt toward the Sun is 23.44°. Likewise, the Sun's declination from the celestial equator (Earth's equator extended as a plane into space) is 23.44°.
First recorded in 1350–1400; Middle English, from Late Latin, aestīvālis, equivalent to Latin aestīv(us) "of or relating to summer" + -ālis -al1
It is sometimes regarded as the Triumph of the Light, of Sol. Daylight reaches the peak of its reach through time. We celebrate the exuberance with pool parties, picnics, and barbecues. At the same time, we realize this is the beginning of an increase in darkness. From this point, daytime will wane in comparison with night. The night gains but remains secondary to the more extended day until equality at the Autumn Equinox.
June 20-22 The 2nd Quarter Day of the year's four (2 solstice, 2 equinox) - Summer Solstice
June 21 - Litha (Norse/Anglo-Saxon for "longest day")
June 23 - St. John's Eve - European Midsummer celebration
The idea that the Sun does not move for three days is an observational one, not a physical reality. The precise moment of standstill can be calculated to the second, although visually, the Sun may seem to rise in the same place for a few days in a row. Since computer programs can give precise timing, I use them. Astrologers have used the timing of solstices and equinoxes for mundane appraisal of the period to follow. I use the precision personally and privately to honor the moments.