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Convert Japan Standard Time to East Africa Time

Instantly convert Japan Standard Time (JST) to East Africa Time (EAT) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Japan Standard Time

02:20:52 PM

Wed, Jun 24 (JST)

East Africa Time

08:20:52 AM

Wed, Jun 24 (EAT)

EAT is -6 hours from JST

Convert a Specific Time

JST

24-Hour Comparison

JSTEAT
12:00 AM6:00 PM(-1d)
1:00 AM7:00 PM(-1d)
2:00 AM8:00 PM(-1d)
3:00 AM9:00 PM(-1d)
4:00 AM10:00 PM(-1d)
5:00 AM11:00 PM(-1d)
6:00 AM12:00 AM
7:00 AM1:00 AM
8:00 AM2:00 AM
9:00 AM3:00 AM
10:00 AM4:00 AM
11:00 AM5:00 AM
12:00 PM6:00 AM
1:00 PM7:00 AM
2:00 PM8:00 AM
3:00 PM9:00 AM
4:00 PM10:00 AM
5:00 PM11:00 AM
6:00 PM12:00 PM
7:00 PM1:00 PM
8:00 PM2:00 PM
9:00 PM3:00 PM
10:00 PM4:00 PM
11:00 PM5:00 PM

How to Convert Japan Standard Time to East Africa Time

Formula

To convert Japan Standard Time (JST) to East Africa Time (EAT): Convert JST to EAT

About Japan Standard Time (JST)

Japan Standard Time (JST, IANA: Asia/Tokyo) is the civil time of Japan, set at UTC+9:00 year-round (no DST). Japan observed Daylight Saving Time only briefly during American Occupation (1948-1951) and discontinued it after the Treaty of San Francisco. JST is also called Nippon Hyōjunji (日本標準時) and is officially maintained by the National Institute of Information and Communications Technology (NICT) — Japan operates a sophisticated atomic-clock-based timekeeping system at NICT Koganei facility with caesium beam frequency standards CSF-2 + Sr-87 optical lattice clock. JST is identical in offset to Korea Standard Time (KST), Yakutsk Time (Russian Far East), Western Indonesian Time WIT (eastern Indonesia), and Palau Time (PWT). JST serves Japan's approximately 125 million residents across 47 prefectures. Major JST cities: Tokyo (14M city, 37M metro — the world's largest metropolitan area by population), Yokohama (3.8M — Tokyo bay metro), Osaka (2.7M, Kansai region 19M metro), Nagoya (2.3M, Chukyo region 9.5M metro), Sapporo (1.9M — Hokkaido capital), Fukuoka (1.6M — Kyushu hub), Kobe (1.5M), Kawasaki (1.5M), Saitama (1.3M). Affects: TSE (Tokyo Stock Exchange) trading hours 09:00-15:00 JST, Tokyo Sumo Grand Tournaments, Shinkansen bullet-train scheduling, Tokyo Disney + USJ park operating hours.

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.

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