Convert Greenwich Mean Time to East Africa Time
Instantly convert Greenwich Mean Time (GMT) to East Africa Time (EAT) with our free online calculator.
Greenwich Mean Time
05:20:58 AM
Wed, Jun 24 (GMT)
East Africa Time
08:20:58 AM
Wed, Jun 24 (EAT)
Convert a Specific Time
24-Hour Comparison
| GMT | EAT |
|---|---|
| 12:00 AM | 3:00 AM |
| 1:00 AM | 4:00 AM |
| 2:00 AM | 5:00 AM |
| 3:00 AM | 6:00 AM |
| 4:00 AM | 7:00 AM |
| 5:00 AM | 8:00 AM |
| 6:00 AM | 9:00 AM |
| 7:00 AM | 10:00 AM |
| 8:00 AM | 11:00 AM |
| 9:00 AM | 12:00 PM |
| 10:00 AM | 1:00 PM |
| 11:00 AM | 2:00 PM |
| 12:00 PM | 3:00 PM |
| 1:00 PM | 4:00 PM |
| 2:00 PM | 5:00 PM |
| 3:00 PM | 6:00 PM |
| 4:00 PM | 7:00 PM |
| 5:00 PM | 8:00 PM |
| 6:00 PM | 9:00 PM |
| 7:00 PM | 10:00 PM |
| 8:00 PM | 11:00 PM |
| 9:00 PM | 12:00 AM(+1d) |
| 10:00 PM | 1:00 AM(+1d) |
| 11:00 PM | 2:00 AM(+1d) |
How to Convert Greenwich Mean Time to East Africa Time
Formula
To convert Greenwich Mean Time (GMT) to East Africa Time (EAT): Convert GMT to EAT
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 East Africa Time (EAT)
East Africa Time (EAT, IANA: Africa/Nairobi, Africa/Addis_Ababa) is the civil time for East African countries, set at UTC+3:00 year-round (no DST). EAT serves approximately 320 million people across: Kenya, Tanzania, Uganda, Ethiopia, Eritrea, Djibouti, Somalia, South Sudan, Comoros, Madagascar (mainland — UTC+3), and Mayotte (French territory — UTC+3). EAT shares the same UTC offset as Moscow Standard Time (MSK), Saudi Arabian Standard Time (AST-SA), Turkey Time (TRT), and Eastern European Summer Time (EEST) — making coordination with the Middle East and Russia simple year-round. Major EAT cities: Cairo (22M metro — uses EET/CAT not EAT), Nairobi Kenya (4.4M city, 9M metro — diplomatic + UN headquarters for East Africa), Addis Ababa Ethiopia (5M city, 5.5M metro — African Union headquarters), Dar es Salaam Tanzania (5M city, 7M metro), Kampala Uganda (1.7M city, 4M metro), Mogadishu (2.6M), Khartoum (Sudan — uses CAT not EAT). Affects: Nairobi Stock Exchange (NSE) trading, Serengeti / Maasai Mara safari schedules, Kilimanjaro climbing-permit scheduling.