tzdata rule group

Arg

Historical rule context · 13 represented zones

A rule group describes recurring clock changes. It is not itself a place or an IANA time-zone identifier.

First rule: 1930
Last rule: 2009
Rule entries: 29
Source files: southamerica

Notes from the time database

Context for this rule

These source notes are preserved from tzdata. They help explain a rule’s period, without adding claims beyond the source.

1989–2009

Rule context

These corrections were contributed by InterSoft Argentina S.A., obtaining the data from the: Talleres de Hidrografía Naval Argentina (Argentine Naval Hydrography Institute)

Original rule fields

Recorded rule entries

Structured directly from tzdata’s Rule lines.

From	To	Type	In	On	At	Save
1930	only	-	Dec	1	0:00	1:00
1931	only	-	Apr	1	0:00	0
1931	only	-	Oct	15	0:00	1:00
1932	1940	-	Mar	1	0:00	0
1932	1939	-	Nov	1	0:00	1:00
1940	only	-	Jul	1	0:00	1:00
1941	only	-	Jun	15	0:00	0
1941	only	-	Oct	15	0:00	1:00
1943	only	-	Aug	1	0:00	0
1943	only	-	Oct	15	0:00	1:00
1946	only	-	Mar	1	0:00	0
1946	only	-	Oct	1	0:00	1:00
1963	only	-	Oct	1	0:00	0
1963	only	-	Dec	15	0:00	1:00
1964	1966	-	Mar	1	0:00	0
1964	1966	-	Oct	15	0:00	1:00
1967	only	-	Apr	2	0:00	0
1967	1968	-	Oct	Sun>=1	0:00	1:00
1968	1969	-	Apr	Sun>=1	0:00	0
1974	only	-	Jan	23	0:00	1:00
1974	only	-	May	1	0:00	0
1988	only	-	Dec	1	0:00	1:00
1989	1993	-	Mar	Sun>=1	0:00	0
1989	1992	-	Oct	Sun>=15	0:00	1:00
1999	only	-	Oct	Sun>=1	0:00	1:00
2000	only	-	Mar	3	0:00	0
2007	only	-	Dec	30	0:00	1:00
2008	2009	-	Mar	Sun>=15	0:00	0
2008	only	-	Oct	Sun>=15	0:00	1:00

Context for this rule

Zones using Arg

Recorded rule entries