America/Cayenne

Time zone identifier: America/Cayenne

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

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1911-07-01

Local Mean Time (LMT): -03:29:20 based on geographic meridian

Total recorded transitions: 2 transitions across 3 distinct offsets

Associated countries: GF

Historical Offset Step Chart (1880 to Present)

Text summary: America/Cayenne shifted between 3 distinct offsets from 1911-07-01 through the modern era.

Complete Transition History (2 Transitions)

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1911-07-01T03:29:20Z`	`1911-06-30 23:29:20`	-03:29:20 → -04:00	`-04`	No	overlap
`1967-10-01T04:00:00Z`	`1967-10-01 01:00:00`	-04:00 → -03:00	`-03`	No	gap

Notes from the Maintainers

Source: southamerica (Lines 1628 to 1633)

French Guiana
For the 1911/1912 establishment of standard time in French possessions, see:
Société Française de Physique, Recueil de constantes physiques (1913),
page 752, 18b.
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.