JST to SGT Converter

SGT is 1 hour behind JST. 9:00 AM JST = 8:00 AM SGT.

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JSTfrom
Japan Standard Time
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Singapore Time
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SGT is 1 hour behind JST. To convert JST to SGT, subtract 1 hour from the JST time: 9:00 AM JST = 8:00 AM SGT.

JST (Japan Time) is used in Japan. SGT (Singapore Time) is used in Singapore.

JST to SGT time conversion table

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

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

Conversion table from JST to SGT 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 SGT, −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 SGT

Subtract 1 hour from the JST time to get SGT.

Example: 9:00 AM JST = 8:00 AM SGT.

Across midnight: 12:00 AM JST = 11:00 PM SGT (previous day). The date changes, so always check the day as well as the hour.

Time difference between JST and SGT

The time difference between JST and SGT is 1 hour all year – SGT is behind JST.

JST and SGT during daylight saving time

  • JST does not observe daylight saving time; it stays on UTC+9 all year.
  • SGT does not observe daylight saving time; it stays on UTC+8 all year.

Best time for a meeting between JST and SGT

JST and SGT share 7 hours of the 9 AM–5 PM working day. Any time between 10:00 AM and 5:00 PM JST lands between 9:00 AM and 4:00 PM SGT, inside working hours for both.

Plan a meeting across more time zones.

JST to SGT FAQ

What is the time difference between JST and SGT?

SGT is 1 hour behind JST all year. 9:00 AM JST = 8:00 AM SGT.

What is 9 AM JST in SGT?

9:00 AM JST is 8:00 AM SGT.

What is 12 PM (noon) JST in SGT?

12:00 PM JST is 11:00 AM SGT.

Is SGT ahead of or behind JST?

SGT is 1 hour behind JST, so it is earlier in SGT 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 SGT change for daylight saving time?

No. SGT 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 SGT?

JST and SGT share 7 hours of the 9 AM–5 PM working day. Any time between 10:00 AM and 5:00 PM JST lands between 9:00 AM and 4:00 PM SGT, inside working hours for both.

Related conversions

Convert SGT to JST

Convert JST to other time zones

Convert other time zones to SGT

Learn more

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