America/Asuncion

Time zone identifier: America/Asuncion

Current civil offset: -03:00 (-03)

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1890-01-01

Local Mean Time (LMT): -03:50:40 based on geographic meridian

Total recorded transitions: 104 transitions across 3 distinct offsets

Associated countries: PY

Historical Offset Step Chart (1880 to Present)

Text summary: America/Asuncion shifted between 3 distinct offsets from 1890-01-01 through the modern era.

Complete Transition History (104 Transitions)

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1890-01-01T03:50:40Z`	`1890-01-01 00:00:00`	-03:50:40 → -03:50:40	`AMT`	No	offset-only
`1931-10-10T03:50:40Z`	`1931-10-09 23:50:40`	-03:50:40 → -04:00	`-04`	No	overlap
`1972-10-01T04:00:00Z`	`1972-10-01 01:00:00`	-04:00 → -03:00	`-03`	No	gap
`1974-04-01T03:00:00Z`	`1974-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1975-10-01T04:00:00Z`	`1975-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1976-03-01T03:00:00Z`	`1976-02-29 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1976-10-01T04:00:00Z`	`1976-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1977-03-01T03:00:00Z`	`1977-02-28 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1977-10-01T04:00:00Z`	`1977-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1978-03-01T03:00:00Z`	`1978-02-28 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1978-10-01T04:00:00Z`	`1978-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1979-04-01T03:00:00Z`	`1979-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1979-10-01T04:00:00Z`	`1979-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1980-04-01T03:00:00Z`	`1980-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1980-10-01T04:00:00Z`	`1980-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1981-04-01T03:00:00Z`	`1981-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1981-10-01T04:00:00Z`	`1981-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1982-04-01T03:00:00Z`	`1982-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1982-10-01T04:00:00Z`	`1982-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1983-04-01T03:00:00Z`	`1983-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1983-10-01T04:00:00Z`	`1983-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1984-04-01T03:00:00Z`	`1984-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1984-10-01T04:00:00Z`	`1984-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1985-04-01T03:00:00Z`	`1985-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1985-10-01T04:00:00Z`	`1985-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1986-04-01T03:00:00Z`	`1986-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1986-10-01T04:00:00Z`	`1986-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1987-04-01T03:00:00Z`	`1987-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1987-10-01T04:00:00Z`	`1987-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1988-04-01T03:00:00Z`	`1988-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1988-10-01T04:00:00Z`	`1988-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1989-04-01T03:00:00Z`	`1989-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1989-10-22T04:00:00Z`	`1989-10-22 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1990-04-01T03:00:00Z`	`1990-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1990-10-01T04:00:00Z`	`1990-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1991-04-01T03:00:00Z`	`1991-03-31 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1991-10-06T04:00:00Z`	`1991-10-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1992-03-01T03:00:00Z`	`1992-02-29 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1992-10-05T04:00:00Z`	`1992-10-05 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1993-03-31T03:00:00Z`	`1993-03-30 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1993-10-01T04:00:00Z`	`1993-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1994-02-27T03:00:00Z`	`1994-02-26 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1994-10-01T04:00:00Z`	`1994-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1995-02-26T03:00:00Z`	`1995-02-25 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1995-10-01T04:00:00Z`	`1995-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1996-03-01T03:00:00Z`	`1996-02-29 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1996-10-06T04:00:00Z`	`1996-10-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1997-02-23T03:00:00Z`	`1997-02-22 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1997-10-05T04:00:00Z`	`1997-10-05 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1998-03-01T03:00:00Z`	`1998-02-28 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1998-10-04T04:00:00Z`	`1998-10-04 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1999-03-07T03:00:00Z`	`1999-03-06 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1999-10-03T04:00:00Z`	`1999-10-03 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2000-03-05T03:00:00Z`	`2000-03-04 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2000-10-01T04:00:00Z`	`2000-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2001-03-04T03:00:00Z`	`2001-03-03 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2001-10-07T04:00:00Z`	`2001-10-07 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2002-04-07T03:00:00Z`	`2002-04-06 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2002-09-01T04:00:00Z`	`2002-09-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2003-04-06T03:00:00Z`	`2003-04-05 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2003-09-07T04:00:00Z`	`2003-09-07 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2004-04-04T03:00:00Z`	`2004-04-03 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2004-10-17T04:00:00Z`	`2004-10-17 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2005-03-13T03:00:00Z`	`2005-03-12 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2005-10-16T04:00:00Z`	`2005-10-16 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2006-03-12T03:00:00Z`	`2006-03-11 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2006-10-15T04:00:00Z`	`2006-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2007-03-11T03:00:00Z`	`2007-03-10 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2007-10-21T04:00:00Z`	`2007-10-21 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2008-03-09T03:00:00Z`	`2008-03-08 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2008-10-19T04:00:00Z`	`2008-10-19 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2009-03-08T03:00:00Z`	`2009-03-07 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2009-10-18T04:00:00Z`	`2009-10-18 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2010-04-11T03:00:00Z`	`2010-04-10 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2010-10-03T04:00:00Z`	`2010-10-03 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2011-04-10T03:00:00Z`	`2011-04-09 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2011-10-02T04:00:00Z`	`2011-10-02 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2012-04-08T03:00:00Z`	`2012-04-07 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2012-10-07T04:00:00Z`	`2012-10-07 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2013-03-24T03:00:00Z`	`2013-03-23 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2013-10-06T04:00:00Z`	`2013-10-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2014-03-23T03:00:00Z`	`2014-03-22 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2014-10-05T04:00:00Z`	`2014-10-05 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2015-03-22T03:00:00Z`	`2015-03-21 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2015-10-04T04:00:00Z`	`2015-10-04 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2016-03-27T03:00:00Z`	`2016-03-26 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2016-10-02T04:00:00Z`	`2016-10-02 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2017-03-26T03:00:00Z`	`2017-03-25 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2017-10-01T04:00:00Z`	`2017-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2018-03-25T03:00:00Z`	`2018-03-24 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2018-10-07T04:00:00Z`	`2018-10-07 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2019-03-24T03:00:00Z`	`2019-03-23 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2019-10-06T04:00:00Z`	`2019-10-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2020-03-22T03:00:00Z`	`2020-03-21 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2020-10-04T04:00:00Z`	`2020-10-04 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2021-03-28T03:00:00Z`	`2021-03-27 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2021-10-03T04:00:00Z`	`2021-10-03 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2022-03-27T03:00:00Z`	`2022-03-26 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2022-10-02T04:00:00Z`	`2022-10-02 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2023-03-26T03:00:00Z`	`2023-03-25 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2023-10-01T04:00:00Z`	`2023-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2024-03-24T03:00:00Z`	`2024-03-23 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2024-10-06T04:00:00Z`	`2024-10-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2024-10-15T03:00:00Z`	`2024-10-15 00:00:00`	-03:00 → -03:00	`-03`	No	offset-only

Notes from the Maintainers

Source: southamerica (Lines 1767 to 1788)

From Heitor David Pinto (2024-09-24):
Today the Congress of Paraguay passed a bill to observe UTC-3 permanently....
The text of the bill says that it would enter into force on the first
Sunday in October 2024, the same date currently scheduled to start DST....
https://silpy.congreso.gov.py/web/expediente/132531
(2024-10-14):
The president approved the law on 11 October 2024,
and it was officially published on 14 October 2024.
https://www.gacetaoficial.gov.py/index/detalle_publicacion/89723
The text of the law says that it enters into force on the first
Sunday in October 2024 (6 October 2024).  But the constitution
prohibits retroactive effect, and the civil code says that laws
enter into force on the day after their publication or on the day
that they specify, and it also says that they don't have retroactive
effect.  So I think that the time change on 6 October 2024 should
still be considered as DST according to the previous law, and
permanently UTC-3 from 15 October 2024 according to the new law....
https://www.constituteproject.org/constitution/Paraguay_2011
https://www.oas.org/dil/esp/codigo_civil_paraguay.pdf

Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]

Attributed Statements:

Heitor David Pinto (2024-09-24):

Today the Congress of Paraguay passed a bill to observe UTC-3 permanently.... The text of the bill says that it would enter into force on the first Sunday in October 2024, the same date currently scheduled to start DST.... https://silpy.congreso.gov.py/web/expediente/132531 (2024-10-14): The president approved the law on 11 October 2024, and it was officially published on 14 October 2024. https://www.gacetaoficial.gov.py/index/detalle_publicacion/89723 The text of the law says that it enters into force on the first Sunday in October 2024 (6 October 2024). But the constitution prohibits retroactive effect, and the civil code says that laws enter into force on the day after their publication or on the day that they specify, and it also says that they don't have retroactive effect. So I think that the time change on 6 October 2024 should still be considered as DST according to the previous law, and permanently UTC-3 from 15 October 2024 according to the new law.... https://www.constituteproject.org/constitution/Paraguay_2011 https://www.oas.org/dil/esp/codigo_civil_paraguay.pdf Zone NAME STDOFF RULES FORMAT [UNTIL]

Years on Record

Methodology Note: The 1970 Rule

tzdb guarantees accuracy for timestamps from 1970 onwards. Transitions prior to 1970 represent best-effort historical reconstructions.