Chronology of Metrication in Sub-Saharan Africa:

55 REU Reunion

REU Time Zone +4 Réunion (Reunion) Saint-Denis
Compulsory Metric Implementation: 1839
Overseas Region and Department of France

94 SEN Senegal

SEN Time Zone 0 Sénégal (Senegal) Dakar
Metric System Adoption: 1840
International System Adoption: 1960
United Nations Member: 28 Sep 1960
Member of ECOWAS; Currency: West African CFA Franc (Fr) XOF

53 MYT Mayotte

MYT Time Zone +3 Mayotte Mamoudzou
Metric System Legal: 1841
Overseas Region and Department of France

54 MUS Mauritius

MUS Time Zone +4 Moris (Mauritius) Porlwi (Port Louis)
Metric System Adoption: 1876
Compulsory Metric Legislation: 1878
United Nations Member: 24 Apr 1968

51 SYC Seychelles

SYC Time Zone +4 Sesel (Seychelles) Victoria
Metric System Legal Adoption: 1880
United Nations Member: 21 Sep 1976

71 TCD Chad

TCD Time Zone +1 Tchad (French) Tshad (Arabic) (Chad) N’Djamena (French) Nijāmīnā (Arabic)
Metric System Adoption: 1884-1907
International System Adoption: 1960
United Nations Member: 20 Sep 1960
Member of CEMAC; Currency: Central African CFA Franc (Fr) XAF

72 CAF Central African Republic

CAF Time Zone +1 Ködörösêse tî Bêafrîka (Sango) République centrafricaine (French) (Central African Republic) Bangî (Bangui)
Metric System Adoption: 1884-1907
International System Adoption: 1960
United Nations Member: 20 Sep 1960
Member of CEMAC; Currency: Central African CFA Franc (Fr) XAF

73 COG Congo

COG Time Zone +1 Kôngo (Congo) Balazavile (Brazzaville)
Metric System Adoption: 1884-1907 French Congo (1882-1910)
Compulsory Metric Implementation: 1910 French Equatorial Africa (1910-1958)
International System Adoption: 1960
United Nations Member: 20 Sep 1960
Member of CEMAC; Currency: Central African CFA Franc (Fr) XAF

88 GAB Gabon

GAB Time Zone +1 Gabon Libreville
Metric System Adoption: 1884-1907
International System Adoption: 1960
United Nations Member: 20 Sep 1960
Member of CEMAC; Currency: Central African CFA Franc (Fr) XAF

77 NER Niger

NER Time Zone +1 Niger Niamey
Metric System Adoption: 1884-1907
International System Adoption: 1960
United Nations Member: 20 Sep 1960
Member of ECOWAS; Currency: West African CFA Franc (Fr) XOF

83 BFA Burkina Faso

BFA Time Zone 0 Burkina Faso (Formerly known as Upper Volta) Ouagadougou
Metric System Adoption: 1884-1907
International System Adoption: 1960
United Nations Member: 20 Sep 1960
Member of ECOWAS; Currency: West African CFA Franc (Fr) XOF

86 BEN Benin

BEN Time Zone +1 Benin (Formerly known as Dahomey) Porto-Novo – also known as Hogbonu and Ajashe
Metric System Adoption: 1884-91
International System Adoption: 1960
United Nations Member: 20 Sep 1960
Member of ECOWAS; Currency: West African CFA Franc (Fr) XOF

89 MLI Mali

MLI Time Zone 0 Mali Bamako
Metric System Adoption: 1884-1907
International System Adoption: 1960
United Nations Member: 28 Sep 1960
Member of ECOWAS; Currency: West African CFA Franc (Fr) XOF

90 CIV Côte d’Ivoire

CIV Time Zone 0 Côte d’Ivoire Yamoussoukro
Metric System Adoption: 1884-90
United Nations Member: 20 Sep 1960
Member of ECOWAS; Currency: West African CFA Franc (Fr) XOF

87 STP Sao Tome and Principe

STP Time Zone 0 São Tomé e Príncipe (Sao Tome and Principe) São Tomé
Metric System Adoption: 1891
United Nations Member: 16 Sep 1975

93 CPV Cabo Verde

CPV Time Zone -1 Cabo Verde Praia
Metric System Adoption: 1891
United Nations Member: 16 Sep 1975
Member of ECOWAS

79 CMR Cameroon

CMR Time Zone +1 Cameroun (Cameroon) Yaoundé
Metric System Adoption: 1894
International System Adoption: 1961
United Nations Member: 20 Sep 1960
Member of CEMAC; Currency: Central African CFA Franc (Fr) XAF

57 MDG Madagascar

MDG Time Zone +3 Madagasikara (Madagascar; formerly known as Malagasy) Antananarivo
Metric System Legal Adoption: 1897 *
United Nations Member: 20 Sep 1960
* The monarchy collapsed in 1897 when the island was absorbed into the French Colonial Empire, from which the island gained independence in 1960.

80 GNQ Equatorial Guinea

GNQ Time Zone +1 Guinea Ecuatorial (Equatorial Guinea) Malabo
Metric System Adoption: 1900 * Treaty of Paris
United Nations Member: 12 Nov 1968
Member of CEMAC; Currency: Central African CFA Franc (Fr) XAF
* The Treaty of Paris signed 27 Jun 1900 between the Kingdom of Spain and the French Republic relieves Río Muni of all conflicting claims. Spain is left with 26,000 km² out of the 300,000 stretching east to the Ubangi River, which they had initially claimed.

97 GIN Guinea

GIN Time Zone 0 Guinée (Guinea) Kɔnakiri (Conakry)
Metric System Adoption: 1901-06
United Nations Member: 12 Dec 1958
Member of ECOWAS

96 GNB Guinea-Bissau

GNB Time Zone 0 Guiné-Bissau (Guinea-Bissau) Bissau
Metric System Adoption: 1905
Compulsory Metric Implementation: 1910
United Nations Member: 17 Sep 1974
Member of ECOWAS; Currency: West African CFA Franc (Fr) XOF

81 AGO Angola

AGO Time Zone +1 Angola Luanda
Metric System Adoption: 1905
Compulsory Metric Implementation: 1910
United Nations Member: 1 Dec 1976

58 MOZ Mozambique

MOZ Time Zone +2 Moçambique (Mozambique) Maputo
Metric System Adoption: 1905
Compulsory Metric Implementation: 1910
United Nations Member: 16 Sep 1975

62 RWA Rwanda

RWA Time Zone +2 Rwanda Kigali
Metric System Adoption: 1910
United Nations Member: 18 Sep 1962

63 BDI Burundi

BDI Time Zone +2 Burundi Bujumbura
Metric System Adoption: 1910
United Nations Member: 18 Sep 1962

74 COD Democratic Republic of the Congo

COD Time Zone +1, +2 Kôngo Demokratiki (Democratic Republic of the Congo) (Named Zaire 1971-1997) Kinsasa (Kinshasa)
Metric System Adoption: 1910 Belgian Congo (1908-1960)
Compulsory Metric Legislation: 1910
United Nations Member: 20 Sep 1960

52 COM Comoros

COM Time Zone +3 Juzur al-Qamar (Comoros) Mūrūnī (Moroni)
Metric System Adoption: 1914
United Nations Member: 12 Nov 1975

76 ZAF South Africa

ZAF Time Zone +2 Suid-Afrika (South Africa) Pretoria (executive) Bloemfontein (judicial) Cape Town (legislative)
Metric System Adoption: 1922 * mainly among chemists
International System Adoption: 1967
Compulsory Metric Implementation: 1974
United Nations Member: 7 Nov 1945
See Successful changeover in South Africa for more detail at www.metric.org.uk/node/17

85 TGO Togo

TGO Time Zone 0 Togo Lomé
Metric System Adoption: 1924 *
International System Adoption: 1960
United Nations Member: 20 Sep 1960
Member of ECOWAS; Currency: West African CFA Franc (Fr) XOF
* Togo français (French Togoland)

66 ZMB Zambia

ZMB Time Zone +2 Zambia Lusaka
Metric System Adoption: 1937
Compulsory Metric Implementation: 1970
United Nations Member: 1 Dec 1964

61 UGA Uganda

UGA Time Zone +3 Uganda Kampala
Metric System Legal: 1950
International System Adoption: 1967
Compulsory Metric Implementation: 1967-69
United Nations Member: 25 Oct 1962

60 KEN Kenya

KEN Time Zone +3 Kenya Nairobi
Metric System Legal: 1951
International System Adoption: 1967-68
United Nations Member: 16 Dec 1963

56 ATF French Southern and Antarctic Lands

ATF Time Zone +5 Terres australes et antarctiques françaises (French Southern and Antarctic Lands) Saint-Pierre
Metric System Legal: 1955 *
Overseas Territory of France
* The French Southern and Antarctic Lands have formed a territoire d’outre-mer (an overseas territory) of France since 1955.

65 SSD South Sudan

SSD Time Zone +3 South Sudan Juba
Metric System Legal Adoption: 1955
United Nations Member: 14 Jul 2011

59 ETH Ethiopia

ETH Time Zone +3 Ityopya (Ethiopia; formerly known as Abyssinia) Addis Ababa / Addis Abeba
International System Adoption: 1963
United Nations Member: 13 Nov 1945 *
* Ethiopia is the only African nation to defeat European colonial ambition and retain sovereignty. Many African nations adopt these flag colors. Ethiopia is the first independent African member of the League of Nations and the United Nations.

64 TZA Tanzania

TZA Time Zone +3 Tanzania Dodoma
International System Adoption: 1967-69
United Nations Member: 14 Dec 1961

82 NAM Namibia

NAM Time Zone +1 Namibia Windhoek
International System Adoption: 1967
United Nations Member: 23 Apr 1990

68 ZWE Zimbabwe

ZWE Time Zone +2 Zimbabwe Harare
International System Adoption: 1969
United Nations Member: 25 Aug 1980

75 BWA Botswana

BWA Time Zone +2 Botswana Gaborone
International System Adoption: 1969-70
Compulsory Metric Implementation: 1973
United Nations Member: 17 Oct 1966

69 SWZ Swaziland

SWZ Time Zone +2 eSwatini (Swaziland) Mbabane
International System Adoption: 1969
Compulsory Metric Implementation: 1973
United Nations Member: 24 Sep 1968

70 LSO Lesotho

LSO Time Zone +2 Lesotho Maseru
International System Adoption: 1970
United Nations Member: 17 Oct 1966

78 NGA Nigeria

NGA Time Zone +1 Nigeria Abuja
International System Adoption: 1971-73
United Nations Member: 7 Oct 1960
Member of ECOWAS

84 GHA Ghana

GHA Time Zone 0 Ghana Accra
International System Adoption: 1972
Compulsory Metric Implementation: 1975
United Nations Member: 8 Mar 1957
Member of ECOWAS

91 SLE Sierra Leone

SLE Time Zone 0 Sierra Leone Freetown
International System Adoption: 1976
United Nations Member: 27 Sep 1961
Member of ECOWAS

67 MWI Malawi

MWI Time Zone +2 Malawi Lilongwe
International System Adoption: 1979
United Nations Member: 1 Dec 1964

95 GMB Gambia

GMB Time Zone 0 Gambia Banjul
International System Adoption: 1979
United Nations Member: 21 Sep 1965
Member of ECOWAS

92 LBR Liberia

LBR Time Zone 0 Liberia Monrovia
International System Adoption: Incomplete
Compulsory Metric Implementation: ____
United Nations Member: 2 Nov 1945
Member of ECOWAS

Visit MetricPioneer.com/Earth for a full list of all nations on Earth in geographic order.