Local Dates and Times of the Equinoxes and Solstices
For Any Gregorian Year From 1600 to 2200 and Local Time Zone

Based on the NASA/JPL DE405 Ephemeris Model and the NASA Polynomials For Delta T
Gregorian Year (1600 to 2200) =       Local Standard Time = UT :    
Dates and Local Standard Times of the Equinoxes and Solstices For Year 2024
In Local Time Zone UT-05:00

March Equinox     = 2460389.62997189 = 2024 Mar 20 03:07:10 Wed  TT
                                     = 2024 Mar 19 22:05:56 Tue  Local Std Time

June Solstice     = 2460482.36952937 = 2024 Jun 20 20:52:07 Thu  TT
                                     = 2024 Jun 20 15:50:53 Thu  Local Std Time

September Equinox = 2460576.03148109 = 2024 Sep 22 12:45:20 Sun  TT
                                     = 2024 Sep 22 07:44:06 Sun  Local Std Time

December Solstice = 2460665.89006706 = 2024 Dec 21 09:21:42 Sat  TT
                                     = 2024 Dec 21 04:20:28 Sat  Local Std Time
NOTE:
To adjust for daylight saving/summer time, add 1 hour to local standard time.


Jay Tanner - 2024