| Year : 1901 |
|---|
| Back to standard time on Friday 13 December 1901 - 21 h 45 (GMT - 3 h 44.666666666667) LMT |
| Year : 1911 |
|---|
| Back to standard time on Monday 15 May 1911 - 04 h 44 (GMT - 4 h ) AST |
| Year : 1980 |
|---|
| Back to standard time on Thursday 1 May 1980 - 06 h 00 (GMT - 3 h ) -03 |
| Year : 1987 |
|---|
| Transition to daylight saving time on Sunday 5 April 1987 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 25 October 1987 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1988 |
|---|
| Transition to daylight saving time on Sunday 3 April 1988 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 30 October 1988 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1989 |
|---|
| Transition to daylight saving time on Sunday 2 April 1989 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 29 October 1989 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1990 |
|---|
| Transition to daylight saving time on Sunday 1 April 1990 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 28 October 1990 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1991 |
|---|
| Transition to daylight saving time on Sunday 7 April 1991 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 27 October 1991 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1992 |
|---|
| Transition to daylight saving time on Sunday 5 April 1992 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 25 October 1992 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1993 |
|---|
| Transition to daylight saving time on Sunday 4 April 1993 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 31 October 1993 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1994 |
|---|
| Transition to daylight saving time on Sunday 3 April 1994 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 30 October 1994 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1995 |
|---|
| Transition to daylight saving time on Sunday 2 April 1995 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 29 October 1995 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1996 |
|---|
| Transition to daylight saving time on Sunday 7 April 1996 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 27 October 1996 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1997 |
|---|
| Transition to daylight saving time on Sunday 6 April 1997 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 26 October 1997 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1998 |
|---|
| Transition to daylight saving time on Sunday 5 April 1998 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 25 October 1998 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 1999 |
|---|
| Transition to daylight saving time on Sunday 4 April 1999 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 31 October 1999 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2000 |
|---|
| Transition to daylight saving time on Sunday 2 April 2000 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 29 October 2000 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2001 |
|---|
| Transition to daylight saving time on Sunday 1 April 2001 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 28 October 2001 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2002 |
|---|
| Transition to daylight saving time on Sunday 7 April 2002 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 27 October 2002 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2003 |
|---|
| Transition to daylight saving time on Sunday 6 April 2003 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 26 October 2003 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2004 |
|---|
| Transition to daylight saving time on Sunday 4 April 2004 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 31 October 2004 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2005 |
|---|
| Transition to daylight saving time on Sunday 3 April 2005 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 30 October 2005 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2006 |
|---|
| Transition to daylight saving time on Sunday 2 April 2006 - 07 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 29 October 2006 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2007 |
|---|
| Transition to daylight saving time on Sunday 11 March 2007 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 4 November 2007 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2008 |
|---|
| Transition to daylight saving time on Sunday 9 March 2008 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 2 November 2008 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2009 |
|---|
| Transition to daylight saving time on Sunday 8 March 2009 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 1 November 2009 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2010 |
|---|
| Transition to daylight saving time on Sunday 14 March 2010 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 7 November 2010 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2011 |
|---|
| Transition to daylight saving time on Sunday 13 March 2011 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 6 November 2011 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2012 |
|---|
| Transition to daylight saving time on Sunday 11 March 2012 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 4 November 2012 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2013 |
|---|
| Transition to daylight saving time on Sunday 10 March 2013 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 3 November 2013 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2014 |
|---|
| Transition to daylight saving time on Sunday 9 March 2014 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 2 November 2014 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2015 |
|---|
| Transition to daylight saving time on Sunday 8 March 2015 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 1 November 2015 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2016 |
|---|
| Transition to daylight saving time on Sunday 13 March 2016 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 6 November 2016 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2017 |
|---|
| Transition to daylight saving time on Sunday 12 March 2017 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 5 November 2017 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2018 |
|---|
| Transition to daylight saving time on Sunday 11 March 2018 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 4 November 2018 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2019 |
|---|
| Transition to daylight saving time on Sunday 10 March 2019 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 3 November 2019 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2020 |
|---|
| Transition to daylight saving time on Sunday 8 March 2020 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 1 November 2020 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2021 |
|---|
| Transition to daylight saving time on Sunday 14 March 2021 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 7 November 2021 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2022 |
|---|
| Transition to daylight saving time on Sunday 13 March 2022 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 6 November 2022 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2023 |
|---|
| Transition to daylight saving time on Sunday 12 March 2023 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 5 November 2023 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2024 |
|---|
| Transition to daylight saving time on Sunday 10 March 2024 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 3 November 2024 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2025 |
|---|
| Transition to daylight saving time on Sunday 9 March 2025 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 2 November 2025 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2026 |
|---|
| Transition to daylight saving time on Sunday 8 March 2026 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 1 November 2026 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2027 |
|---|
| Transition to daylight saving time on Sunday 14 March 2027 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 7 November 2027 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2028 |
|---|
| Transition to daylight saving time on Sunday 12 March 2028 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 5 November 2028 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2029 |
|---|
| Transition to daylight saving time on Sunday 11 March 2029 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 4 November 2029 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2030 |
|---|
| Transition to daylight saving time on Sunday 10 March 2030 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 3 November 2030 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2031 |
|---|
| Transition to daylight saving time on Sunday 9 March 2031 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 2 November 2031 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2032 |
|---|
| Transition to daylight saving time on Sunday 14 March 2032 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 7 November 2032 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2033 |
|---|
| Transition to daylight saving time on Sunday 13 March 2033 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 6 November 2033 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2034 |
|---|
| Transition to daylight saving time on Sunday 12 March 2034 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 5 November 2034 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2035 |
|---|
| Transition to daylight saving time on Sunday 11 March 2035 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 4 November 2035 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2036 |
|---|
| Transition to daylight saving time on Sunday 9 March 2036 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 2 November 2036 - 05 h 00 (GMT - 3 h ) -03 |
| Year : 2037 |
|---|
| Transition to daylight saving time on Sunday 8 March 2037 - 06 h 00 (GMT - 2 h ) -02 |
| Back to standard time on Sunday 1 November 2037 - 05 h 00 (GMT - 3 h ) -03 |