Time Zone History

Liberia time zone history

Since 1970 it has also used UTC−0:44:30, an offset that is not a whole number of hours. Monrovia left local mean time (UTC−0:43:08) in 1882, the second-earliest switch of the 19 zones in Africa.

UTC+0

Standard time is UTC+0 (GMT) all year under the current rules.

tz database name Africa/Monrovia

Convert a time from Liberia

Once a new standard time since 1970

UTC−0:44:30, UTC−0:43:08: behind today’s standard timeUTC+0: today’s standard timeUTC−0:44:30, UTC−0:43:08: behindtoday’s standard timeUTC+0: today’s standard time

How to read this chart

Before 1970

187018901910193019501970187019101950
JanFebMarAprMayJunJulAugSepOctNovDec1970198019902000201020202028JFMAMJJASOND1970198019902000201020202028

Standard time changes

DateChangeNew standard timeClock label
Before 1970
January 1, 1882Local mean time (UTC−0:43:08) replacedUTC−0:43:08MMT
March 1, 1919Standard time back 1 minuteUTC−0:44:30MMT
Since 1970
January 7, 1972Standard time forward 44 minutesUTC+0GMT

Also on UTC+0

Côte d’Ivoire, Guinea-Bissau, São Tomé and Príncipe, Western Sahara, Canary Islands (Spain), Madeira (Portugal), Morocco, Lisbon (Portugal), United Kingdom and Faroe Islands (nearest first; 2 more on the list of offsets).

Clocks next door since 1970

  • Côte d’Ivoire (755 km): same time except 736 days in 1970–1972.
  • Guinea-Bissau (811 km): same time except 1,826 days in 1970–1975.
  • Nigeria (1,567 km): usually 1 hour ahead; different on 736 days in 1970–1972.
  • Cape Verde (1,688 km): usually 1 hour behind; different on 2,154 days in 1970–1975.
  • São Tomé and Príncipe (2,054 km): same time except 1,101 days in 1970–1972, 2018 and 2019.

How it compares

On standard time, clocks in Monrovia run 43 minutes ahead of local mean solar time.