TimeToZone

GST to JST Converter

JST is 5 hours ahead of GST. 9:00 AM GST = 2:00 PM JST.

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GSTfrom
Gulf Standard Time
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JST
Japan Standard Time
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JST is 5 hours ahead of GST. To convert GST to JST, add 5 hours to the GST time: 9:00 AM GST = 2:00 PM JST.

GST (Gulf Time) is used in United Arab Emirates and Oman. JST (Japan Time) is used in Japan.

GST to JST time conversion table

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

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

Conversion table from GST to JST 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 JST, −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 GST to JST

Add 5 hours to the GST time to get JST.

Example: 9:00 AM GST = 2:00 PM JST.

Across midnight: 10:00 PM GST = 3:00 AM JST (next day). The date changes, so always check the day as well as the hour.

Time difference between GST and JST

The time difference between GST and JST is 5 hours all year – JST is ahead of GST.

GST and JST during daylight saving time

  • GST does not observe daylight saving time; it stays on UTC+4 all year.
  • JST does not observe daylight saving time; it stays on UTC+9 all year.

Best time for a meeting between GST and JST

GST and JST share 3 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 12:00 PM GST lands between 2:00 PM and 5:00 PM JST, inside working hours for both.

Plan a meeting across more time zones.

GST to JST FAQ

What is the time difference between GST and JST?

JST is 5 hours ahead of GST all year. 9:00 AM GST = 2:00 PM JST.

What is 9 AM GST in JST?

9:00 AM GST is 2:00 PM JST.

What is 12 PM (noon) GST in JST?

12:00 PM GST is 5:00 PM JST.

Is JST ahead of or behind GST?

JST is 5 hours ahead of GST, so it is later in JST than in GST.

Does GST change for daylight saving time?

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

Does JST change for daylight saving time?

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

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

GST and JST share 3 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 12:00 PM GST lands between 2:00 PM and 5:00 PM JST, inside working hours for both.

Related conversions

Convert JST to GST

JST to GST

Convert GST to other time zones

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Convert other time zones to JST

IST to JSTEST to JSTAbbotsford Time to JSTAbidjan Time to JSTAbu Dhabi Time to JSTAdelaide Time to JSTAEST to JSTAgra Time to JSTBraunschweig Time to JSTBrazil Time to JSTBremen Time to JSTBrighton Time to JST

Learn more

GST time zoneJST time zone

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