What is the time difference between EAT and JST?

Japan Standard Time (JST) is 6 hours ahead of East Africa Time (EAT). EAT uses a UTC offset of UTC+3, while JST uses UTC+9. For example, when it's 9:00 AM in EAT, it's 3:00 PM in JST. This difference remains constant year-round since neither timezone observes daylight saving time. Use the conversion table above to see the exact time for each hour of the day.

How do I convert EAT to JST?

To convert EAT to JST, add 6 hours to the EAT time. For example, 9:00 AM EAT is 3:00 PM JST, and 5:00 PM EAT is 11:00 PM JST. Since neither timezone observes DST, this conversion stays the same all year. You can also use the interactive converter above for quick, accurate results.

What time is it in JST when it's noon in EAT?

When it's 12:00 PM (noon) in EAT, it's 6:00 PM in JST. This is because JST is 6 hours ahead of EAT. Similarly, when it's 6:00 PM in EAT, it's 12:00 AM in JST. This relationship is constant throughout the year. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours ahead is JST from EAT?

JST is 6 hours ahead of EAT. This means when it's 9:00 AM in EAT, it's 3:00 PM in JST, and when it's midnight in EAT, it's 6:00 AM in JST. This offset is constant throughout the year since neither timezone uses daylight saving time. The conversion table above provides a complete hour-by-hour mapping.

Is JST ahead or behind EAT?

JST is ahead of EAT by 6 hours. Clocks in JST show a later time than EAT, meaning the day starts earlier in JST relative to EAT. For example, when it's morning in EAT, it's already afternoon or evening in JST. This difference stays the same year-round.

Does EAT observe daylight saving time?

No, East Africa Time does not observe daylight saving time. The UTC offset of UTC+3 remains the same year-round, making time conversions from EAT more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

Does JST observe daylight saving time?

No, Japan Standard Time does not observe daylight saving time. The UTC offset of UTC+9 remains the same year-round, making time conversions to JST more predictable. Countries and regions in this timezone keep their clocks unchanged regardless of the season.

What is the best time to call from EAT to JST?

The best time for a call between EAT and JST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in JST during their work day, call between 3:00 AM and 11:00 AM your EAT time. Avoid calling too early or late, as the 6 hours difference means your evening could be their late night. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

Do EAT and JST ever have the same time?

No, EAT and JST are always 6 hours apart and never display the same clock time simultaneously. Neither timezone observes DST, so the difference is constant year-round with no seasonal variation. The 6 hours offset is determined by their fixed positions relative to the Prime Meridian (UTC). You can always rely on this consistent difference when planning across these timezones.

EAT to JST Converter

Convert East Africa Time to Japan Standard Time. See the hour-by-hour conversion table below.

Timezone Details

East Africa Time

9:55 AM

Saturday, April 4, 2026

EAT (UTC+03:00)

Japan Standard Time

3:55 PM

Saturday, April 4, 2026

JST (UTC+09:00)

Difference: +6 hours

EAT DST: No

JST DST: No

24-Hour Overview

EAT — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

JST — 24-hour overview

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

12a12a

3a3a

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

JST to EAT EST to JST JST to EST PST to JST JST to PST GMT to JST JST to GMT IST to JST JST to IST

Cities in These Timezones

EAT Cities

Nairobi

JST Cities

Tokyo Osaka Fukuoka

More Tools

Compare EAT & JST Plan a Meeting (EAT & JST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

East Africa Time on Wikipedia Japan Standard Time on Wikipedia IANA Time Zone Database