JST to EAT Converter & Meeting Planner
Quick answer: 9:00 AM JST = 3:00 AM EAT (fixed +09:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Japan Standard Time (JST) and Eastern Africa Time (EAT)? You need to account for the standard time difference. Eastern Africa Time is normally 6 hours behind Japan Standard Time. Whether you are coordinating between teams in Tokyo and Osaka and Nairobi and Addis Ababa, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM JST = 6:00 PM EAT. The full 24-hour JST to EAT table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM JST = 9:00 AM EAT.
| JST Time | EAT Time |
|---|---|
| 12:00 AM (00:00) | 6:00 PM (18:00)-1 day |
| 1:00 AM (01:00) | 7:00 PM (19:00)-1 day |
| 2:00 AM (02:00) | 8:00 PM (20:00)-1 day |
| 3:00 AM (03:00) | 9:00 PM (21:00)-1 day |
| 4:00 AM (04:00) | 10:00 PM (22:00)-1 day |
| 5:00 AM (05:00) | 11:00 PM (23:00)-1 day |
| 6:00 AM (06:00) | 12:00 AM (00:00) |
| 7:00 AM (07:00) | 1:00 AM (01:00) |
| 8:00 AM (08:00) | 2:00 AM (02:00) |
| 9:00 AM (09:00) | 3:00 AM (03:00) |
| 10:00 AM (10:00) | 4:00 AM (04:00) |
| 11:00 AM (11:00) | 5:00 AM (05:00) |
| 12:00 PM (12:00) | 6:00 AM (06:00) |
| 1:00 PM (13:00) | 7:00 AM (07:00) |
| 2:00 PM (14:00) | 8:00 AM (08:00) |
| 3:00 PM (15:00) | 9:00 AM (09:00) |
| 4:00 PM (16:00) | 10:00 AM (10:00) |
| 5:00 PM (17:00) | 11:00 AM (11:00) |
| 6:00 PM (18:00) | 12:00 PM (12:00) |
| 7:00 PM (19:00) | 1:00 PM (13:00) |
| 8:00 PM (20:00) | 2:00 PM (14:00) |
| 9:00 PM (21:00) | 3:00 PM (15:00) |
| 10:00 PM (22:00) | 4:00 PM (16:00) |
| 11:00 PM (23:00) | 5:00 PM (17:00) |
Best time to call Nairobi from Tokyo
For most work calls, compare the normal business day in Tokyo (JST) with the business day in Nairobi (EAT). JST commonly covers East Asia, while EAT is mainly associated with Eastern Africa, Indian Ocean.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 2:00 PM - 6:00 PM JST, which corresponds to 8:00 AM - 12:00 PM EAT. This window sits inside the typical JST workday (9:00 AM - 6:00 PM) and the EAT workday (8:00 AM - 5:00 PM).
- DST Safety: Neither JST nor EAT uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Tokyo Stock Exchange (TSE): 09:00-15:00 local time in Tokyo.
- Nairobi Securities Exchange (NSE): 09:00-15:00 local time in Nairobi.
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Frequently Asked Questions
What is the time difference between JST and EAT?
During standard time, Eastern Africa Time is 6 hours behind Japan Standard Time.
Does Japan observe Daylight Saving Time?
Japan has not observed Daylight Saving Time since 1951, when the practice introduced during the Allied occupation was abolished by the Japanese government. JST has remained fixed at UTC+9:00 ever since, and there is no current legislation to reintroduce DST in Japan.
Is JST the same as Korean Standard Time (KST)?
Yes, South Korea's Korean Standard Time (KST) operates at the same UTC+9:00 offset as JST, and South Korea also does not observe Daylight Saving Time. The two countries share an identical clock year-round, which simplifies scheduling for the significant trade, technology, and cultural exchange between Tokyo and Seoul.
Do East African countries observe Daylight Saving Time?
None of the countries observing Eastern Africa Time use Daylight Saving Time. Situated close to the equator, these nations experience minimal seasonal variation in daylight hours, making clock changes unnecessary — EAT remains permanently fixed at UTC+03:00 throughout the year.
Which major countries use Eastern Africa Time (EAT)?
Eastern Africa Time is observed by Kenya, Ethiopia, Tanzania, Uganda, Madagascar, Somalia, and Djibouti. Among these, Kenya and Ethiopia are the zone's two largest economies, with Nairobi and Addis Ababa serving as the primary financial and administrative centers.