Convert Greenwich Mean Time to West Africa Time
Instantly convert Greenwich Mean Time (GMT) to West Africa Time (WAT) with our free online calculator.
Greenwich Mean Time
05:20:58 AM
Wed, Jun 24 (GMT)
West Africa Time
06:20:58 AM
Wed, Jun 24 (WAT)
Convert a Specific Time
24-Hour Comparison
| GMT | WAT |
|---|---|
| 12:00 AM | 1:00 AM |
| 1:00 AM | 2:00 AM |
| 2:00 AM | 3:00 AM |
| 3:00 AM | 4:00 AM |
| 4:00 AM | 5:00 AM |
| 5:00 AM | 6:00 AM |
| 6:00 AM | 7:00 AM |
| 7:00 AM | 8:00 AM |
| 8:00 AM | 9:00 AM |
| 9:00 AM | 10:00 AM |
| 10:00 AM | 11:00 AM |
| 11:00 AM | 12:00 PM |
| 12:00 PM | 1:00 PM |
| 1:00 PM | 2:00 PM |
| 2:00 PM | 3:00 PM |
| 3:00 PM | 4:00 PM |
| 4:00 PM | 5:00 PM |
| 5:00 PM | 6:00 PM |
| 6:00 PM | 7:00 PM |
| 7:00 PM | 8:00 PM |
| 8:00 PM | 9:00 PM |
| 9:00 PM | 10:00 PM |
| 10:00 PM | 11:00 PM |
| 11:00 PM | 12:00 AM(+1d) |
How to Convert Greenwich Mean Time to West Africa Time
Formula
To convert Greenwich Mean Time (GMT) to West Africa Time (WAT): Convert GMT to WAT
About Greenwich Mean Time (GMT)
Greenwich Mean Time (GMT, IANA: Europe/London) is the historic and current civil time of the United Kingdom (during winter), Ireland (during winter), Portugal mainland (during winter), Iceland (year-round), and most West African countries. GMT is set at UTC+0 — the time on the Prime Meridian (0° longitude) running through the Royal Observatory in Greenwich, southeast London. Established as the global time reference by the 1884 International Meridian Conference in Washington DC, GMT served as the world's primary civil-time reference from 1884 until 1972 when UTC (Coordinated Universal Time) was adopted as the new precision standard. The UK switches from GMT to British Summer Time (BST = UTC+1) at 01:00 GMT on the last Sunday of March and back to GMT at 02:00 BST on the last Sunday of October per EU Directive 2000/84/EC (UK retained this schedule after Brexit). GMT affects: London Stock Exchange (LSE) trading hours, BBC World Service broadcast time-stamps, all aviation NOTAMs and weather METARs which use UTC = GMT, and ICAO + IMO worldwide maritime/aviation coordination.
About West Africa Time (WAT)
West Africa Time (WAT, IANA: Africa/Lagos, Africa/Kinshasa) is the civil time for West African and Central African countries, set at UTC+1:00 year-round (no DST). WAT serves approximately 350 million people across: Algeria, Angola, Benin, Cameroon, Central African Republic, Chad, DR Congo (western half), Republic of Congo, Equatorial Guinea, Gabon, Niger, Nigeria, São Tomé and Príncipe, Tunisia. WAT is the same offset as Central European Time (CET) in winter, easing African business coordination with Western European partners. Major WAT cities: Lagos Nigeria (15M metro — the largest city in Africa and home to one of the world's fastest-growing populations), Kinshasa DRC (17M metro), Algiers (3.7M metro), Tunis (2.4M metro), Yaoundé (2.8M), Douala (2.7M), Brazzaville (1.8M), Luanda (8M metro), N'Djamena (1.4M). The eastern half of the DRC uses Central Africa Time (CAT = UTC+2). Affects: Nollywood film-industry production in Lagos, African Union meetings, Lagos NGX (Nigerian Exchange Group) trading hours, and Lagos-São Paulo + Lagos-Buenos Aires Atlantic-shipping schedules.