America/Hermosillo

Time zone identifier: America/Hermosillo

Current civil offset: -07:00 (MST)

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1922-01-01

Local Mean Time (LMT): -07:23:52 based on geographic meridian

Total recorded transitions: 13 transitions across 3 distinct offsets

Associated countries: MX

Historical Offset Step Chart (1880 to Present)

Text summary: America/Hermosillo shifted between 3 distinct offsets from 1922-01-01 through the modern era.

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1922-01-01T07:00:00Z`	`1922-01-01 00:00:00`	-07:23:52 → -07:00	`MST`	No	gap
`1927-06-10T07:00:00Z`	`1927-06-10 01:00:00`	-07:00 → -06:00	`CST`	No	gap
`1930-11-15T06:00:00Z`	`1930-11-14 23:00:00`	-06:00 → -07:00	`MST`	No	overlap
`1931-04-30T07:00:00Z`	`1931-04-30 01:00:00`	-07:00 → -06:00	`MDT`	Yes	gap
`1931-10-01T06:00:00Z`	`1931-09-30 23:00:00`	-06:00 → -07:00	`MST`	No	overlap
`1932-04-01T07:00:00Z`	`1932-04-01 01:00:00`	-07:00 → -06:00	`CST`	No	gap
`1942-04-24T06:00:00Z`	`1942-04-23 23:00:00`	-06:00 → -07:00	`MST`	No	overlap
`1996-04-07T09:00:00Z`	`1996-04-07 03:00:00`	-07:00 → -06:00	`MDT`	Yes	gap
`1996-10-27T08:00:00Z`	`1996-10-27 01:00:00`	-06:00 → -07:00	`MST`	No	overlap
`1997-04-06T09:00:00Z`	`1997-04-06 03:00:00`	-07:00 → -06:00	`MDT`	Yes	gap
`1997-10-26T08:00:00Z`	`1997-10-26 01:00:00`	-06:00 → -07:00	`MST`	No	overlap
`1998-04-05T09:00:00Z`	`1998-04-05 03:00:00`	-07:00 → -06:00	`MDT`	Yes	gap
`1998-10-25T08:00:00Z`	`1998-10-25 01:00:00`	-06:00 → -07:00	`MST`	No	overlap

Source: northamerica (Lines 2959 to 2959)

Sonora

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