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America/Matamoros

America/Matamoros is the IANA time zone for Coahuila, Nuevo Leon, Tamaulipas (US border) in Mexico.

UTC−05:00

Tue, Sep 29 UTC−5 CDT

Offsets and daylight saving time

Standard offset
UTC−06:00
Daylight offset
UTC−05:00
Rule
Daylight saving time from the second Sunday in March at 02:00 to the first Sunday in November at 02:00 (local time).

Next clock changes

  • Sunday, November 1, 2026 at 02:00: back to UTC−6 (CDT → CST)
  • Sunday, March 14, 2027 at 02:00: forward to UTC−5 (CST → CDT)

Names

Generic name
Central Time
Abbreviation
CST / CDT
Standard / daylight
Central Standard Time / Central Daylight Time

Use it in code

// JavaScript
new Intl.DateTimeFormat('en-US', { timeZone: 'America/Matamoros' })

# Python
from zoneinfo import ZoneInfo
ZoneInfo('America/Matamoros')

-- PostgreSQL
SELECT now() AT TIME ZONE 'America/Matamoros';

Cities in America/Matamoros

Also in this zone: Heroica Matamoros, Nuevo Laredo, Ciudad Acuña, Piedras Negras.

Offset history since 1970

  • 1970–1987: UTC−6
  • 1988: UTC−6 and UTC−5 during the year
  • 1989–1995: UTC−6
  • 1996–2026: UTC−6 and UTC−5 each year

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