For fun I redidi it using NEw York
Equinox – Correct date – your date – match?
2000 Sep 22 Dec 4 Dec 4 Y
2001 Sep 22 Dec 4 Dec 4 Y
2002 Sep 23 Dec 4 Dec 5 N
2003 Sep 23 Dec 5 Dec 5 Y
2004 Sep 22 Dec 4 Dec 4 Y
2005 Sep 22 Dec 4 Dec 4 Y
2006 Sep 23 Dec 4 Dec 5 N
2007 Sep 23 Dec 5 Dec 5 Y
2008 Sep 22 Dec 4 Dec 4 Y
2009 Sep 22 Dec 4 Dec 4 Y
2010 Sep 22 Dec 4 Dec 5 Y
2011 Sep 23 Dec 5 Dec 5 Y
2012 Sep 22 Dec 4 Dec 4 Y
2013 Sep 22 Dec 4 Dec 4 Y
2014 Sep 22 Dec 4 Dec 5 Y
2015 Sep 23 Dec 5 Dec 5 Y
2016 Sep 22 Dec 4 Dec 4 Y
2017 Sep 22 Dec 4 Dec 4 Y
2018 Sep 22 Dec 4 Dec 5 Y
2019 Sep 23 Dec 5 Dec 5 Y
2020 Sep 22 Dec 4 Dec 4 Y
2021 Sep 22 Dec 4 Dec 4 Y
2022 Sep 22 Dec 4 Dec 5 Y
2023 Sep 23 Dec 5 Dec 5 Y
2024 Sep 22 Dec 4 Dec 4 Y
2025 Sep 22 Dec 4 Dec 4 Y
2026 Sep 22 Dec 4 Dec 5 Y
2027 Sep 23 Dec 5 Dec 5 Y
2028 Sep 22 Dec 4 Dec 4 Y
2029 Sep 22 Dec 4 Dec 4 Y
2030 Sep 22 Dec 4 Dec 4 Y
2031 Sep 23 Dec 5 Dec 5 Y
2032 Sep 22 Dec 4 Dec 4 Y
2033 Sep 22 Dec 4 Dec 4 Y
2034 Sep 22 Dec 4 Dec 4 Y
2035 Sep 23 Dec 5 Dec 5 Y
2036 Sep 22 Dec 4 Dec 4 Y
2037 Sep 22 Dec 4 Dec 4 Y
2038 Sep 22 Dec 4 Dec 4 Y
2039 Sep 22 Dec 5 Dec 5 N
2040 Sep 22 Dec 4 Dec 4 Y
2041 Sep 22 Dec 4 Dec 4 Y
2042 Sep 22 Dec 4 Dec 4 Y
2043 Sep 22 Dec 5 Dec 5 N
2044 Sep 22 Dec 4 Dec 4 Y
2045 Sep 22 Dec 4 Dec 4 Y
2046 Sep 22 Dec 4 Dec 4 Y
2047 Sep 22 Dec 5 Dec 5 N
2048 Sep 22 Dec 4 Dec 4 Y
2049 Sep 22 Dec 4 Dec 4 Y
The accuracy of your system goes up slightly it is 88% accurate. wrong only 6/50 times