TimeToZone

JST to BRT Converter

BRT is 12 hours behind JST. 9:00 AM JST = 9:00 PM BRT (previous day).

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JSTfrom
Japan Standard Time
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BRT
Brasília Time
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BRT is 12 hours behind JST. To convert JST to BRT, subtract 12 hours from the JST time: 9:00 AM JST = 9:00 PM BRT (previous day).

JST (Japan Time) is used in Japan. BRT (Brasília Time) is used in Brasília, São Paulo, Rio de Janeiro.

JST to BRT time conversion table

JST to BRT on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.

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

Conversion table from JST to BRT for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in BRT, −1 the previous day.

  • ✓ marks 9 AM–5 PM in both places
  • Greyed times are night in the destination (10 PM–6 AM)

How to convert JST to BRT

Subtract 12 hours from the JST time to get BRT.

Example: 9:00 AM JST = 9:00 PM BRT (previous day).

Across midnight: 1:00 AM JST = 1:00 PM BRT (previous day). The date changes, so always check the day as well as the hour.

Time difference between JST and BRT

The time difference between JST and BRT is 12 hours all year – BRT is behind JST.

JST and BRT during daylight saving time

  • JST does not observe daylight saving time; it stays on UTC+9 all year.
  • BRT does not observe daylight saving time; it stays on UTC−3 all year.

Best time for a meeting between JST and BRT

JST and BRT have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 7:00 PM BRT.

Plan a meeting across more time zones.

JST to BRT FAQ

What is the time difference between JST and BRT?

BRT is 12 hours behind JST all year. 9:00 AM JST = 9:00 PM BRT (previous day).

What is 9 AM JST in BRT?

9:00 AM JST is 9:00 PM BRT (previous day).

What is 12 PM (noon) JST in BRT?

12:00 PM JST is 12:00 AM BRT.

Is BRT ahead of or behind JST?

BRT is 12 hours behind JST, so it is earlier in BRT than in JST.

Does JST change for daylight saving time?

No. JST stays on the same offset all year, so conversions never shift for daylight saving time.

Does BRT change for daylight saving time?

No. BRT stays on the same offset all year, so conversions never shift for daylight saving time.

What is the best time for a meeting between JST and BRT?

JST and BRT have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 7:00 PM BRT.

Related conversions

Convert BRT to JST

BRT to JST

Convert JST to other time zones

JST to ESTJST to Abbotsford TimeJST to Abidjan TimeJST to Abu Dhabi TimeJST to Adelaide TimeJST to AESTJST to Agra TimeJST to Ahmedabad Time

Convert other time zones to BRT

AEST to BRTAKST to BRTAST to BRTAWST to BRTBangladesh Time to BRTBST to BRTCET to BRTChina Time to BRT

Learn more

JST time zoneBRT time zone

Updated 7 November 2026. Time zone data: IANA tz database.