Hi Forexbob,
We've run our timezone converter through the "
(UTC +2:00) UTC +2 With European/London DST" timezone and below are all the transitions from 2000-2029:
In 2000, DST started on March 26 and ended on October 29.
In 2001, DST started on March 25 and ended on October 28.
In 2002, DST started on March 31 and ended on October 27.
In 2003, DST started on March 30 and ended on October 26.
In 2004, DST started on March 28 and ended on October 31.
In 2005, DST started on March 27 and ended on October 30.
In 2006, DST started on March 26 and ended on October 29.
In 2007, DST started on March 25 and ended on October 28.
In 2008, DST started on March 30 and ended on October 26.
In 2009, DST started on March 29 and ended on October 25.
In 2010, DST started on March 28 and ended on October 31.
In 2011, DST started on March 27 and ended on October 30.
In 2012, DST started on March 25 and ended on October 28.
In 2013, DST started on March 31 and ended on October 27.
In 2014, DST started on March 30 and ended on October 26.
In 2015, DST started on March 29 and ended on October 25.
In 2016, DST started on March 27 and ended on October 30.
In 2017, DST started on March 26 and ended on October 29.
In 2018, DST started on March 25 and ended on October 28.
In 2019, DST started on March 31 and ended on October 27.
In 2020, DST started on March 29 and ended on October 25.
In 2021, DST started on March 28 and ended on October 31.
In 2022, DST started on March 27 and ended on October 30.
In 2023, DST started on March 26 and ended on October 29.
In 2024, DST started on March 31 and ended on October 27.
In 2025, DST started on March 30 and ended on October 26.
In 2026, DST started on March 29 and ended on October 25.
In 2027, DST started on March 28 and ended on October 31.
In 2028, DST started on March 26 and ended on October 29.
In 2029, DST started on March 25 and ended on October 28.
Note that the single "1st March to 1st October" entry that is displayed in the timezone information window is actually augmented with additional rules to get the correct DST transition date for each year. This information is sourced from the Windows installation.
Hope this helps.
NY Trading Hours equivalent of the table above.
EDIT: Oct 2021 - Added additional years from 2021-2029. Added link to NY Time-zone equivalent table.