Time Zone History

Martinique time zone history

Daylight saving time was used in 1 year since 1970, last in 1980; under the current rules the clocks no longer change. On standard time, clocks in Martinique run 4 minutes ahead of local mean solar time.

UTC−4

Standard time is UTC−4 (AST) all year under the current rules.

tz database name America/Martinique

Convert a time from Martinique

Summer time in 1 of 57 years since 1970

UTC−4:04:20: 4 minutes behind today’s standard timeUTC−4: today’s standard timeUTC−3: 1 hour ahead of today’s standard timeUTC−4:04:20: 4 minutes behindtoday’s standard timeUTC−4: today’s standard timeUTC−3: 1 hour ahead of today’sstandard time

How to read this chart

Before 1970

18801900192019401960188019201960
JanFebMarAprMayJunJulAugSepOctNovDec1970198019902000201020202028JFMAMJJASOND1970198019902000201020202028

Standard time changes

DateChangeNew standard timeClock label
Before 1970
January 1, 1890Local mean time (UTC−4:04:20) replacedUTC−4:04:20FFMT
May 1, 1911Standard time forward 4 minutesUTC−4AST

Daylight saving periods

YearsClocks go forwardClocks go backShift and labels
1980April 6September 281 hour, AST to ADT

Also on UTC−4

Barbados, Puerto Rico, Venezuela, Guyana, Dominican Republic, Boa Vista (Brazil), Manaus (Brazil), Bermuda, Porto Velho (Brazil) and Halifax (Canada) (nearest first; 8 more on the list of offsets).

Clocks next door since 1970

  • Barbados (230 km): same time except 465 days in 1977–1980.
  • Puerto Rico (687 km): same time except 175 days in 1980.
  • Venezuela (782 km): same time except 3,241 days in 1980 and 2007–2016.
  • Guyana (924 km): same time except 7,948 days in 1970–1992.
  • Dominican Republic (1,033 km): same time except 1,970 days in 1970–1974, 1980 and 2000.
  • Suriname (1,170 km): usually 1 hour ahead; different on 5,387 days in 1970–1984.

How it compares

Standard time has stayed at UTC−4 since 1911.