SGT to JST Converter
JST is 1 hour ahead of SGT. 9:00 AM SGT = 10:00 AM JST.
JST is 1 hour ahead of SGT. To convert SGT to JST, add 1 hour to the SGT time: 9:00 AM SGT = 10:00 AM JST.
SGT (Singapore Time) is used in Singapore. JST (Japan Time) is used in Japan.
SGT to JST time conversion table
SGT to JST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| SGT | JST | Day |
|---|---|---|
| 12:00 AM SGT | 1:00 AM JST | night |
| 1:00 AM SGT | 2:00 AM JST | night |
| 2:00 AM SGT | 3:00 AM JST | night |
| 3:00 AM SGT | 4:00 AM JST | night |
| 4:00 AM SGT | 5:00 AM JST | night |
| 5:00 AM SGT | 6:00 AM JST | — |
| 6:00 AM SGT | 7:00 AM JST | — |
| 7:00 AM SGT | 8:00 AM JST | — |
| 8:00 AM SGT | 9:00 AM JST | — |
| 9:00 AM SGT | 10:00 AM JST | work hours |
| 10:00 AM SGT | 11:00 AM JST | work hours |
| 11:00 AM SGT | 12:00 PM JST | work hours |
| 12:00 PM SGT | 1:00 PM JST | work hours |
| 1:00 PM SGT | 2:00 PM JST | work hours |
| 2:00 PM SGT | 3:00 PM JST | work hours |
| 3:00 PM SGT | 4:00 PM JST | work hours |
| 4:00 PM SGT | 5:00 PM JST | — |
| 5:00 PM SGT | 6:00 PM JST | — |
| 6:00 PM SGT | 7:00 PM JST | — |
| 7:00 PM SGT | 8:00 PM JST | — |
| 8:00 PM SGT | 9:00 PM JST | — |
| 9:00 PM SGT | 10:00 PM JST | night |
| 10:00 PM SGT | 11:00 PM JST | night |
| 11:00 PM SGT | 12:00 AM JST | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert SGT to JST
Add 1 hour to the SGT time to get JST.
Example: 9:00 AM SGT = 10:00 AM JST.
Across midnight: 11:00 PM SGT = 12:00 AM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between SGT and JST
The time difference between SGT and JST is 1 hour all year – JST is ahead of SGT.
SGT and JST during daylight saving time
- SGT does not observe daylight saving time; it stays on UTC+8 all year.
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between SGT and JST
SGT and JST share 7 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 4:00 PM SGT lands between 10:00 AM and 5:00 PM JST, inside working hours for both.
SGT to JST FAQ
What is the time difference between SGT and JST?
JST is 1 hour ahead of SGT all year. 9:00 AM SGT = 10:00 AM JST.
What is 9 AM SGT in JST?
9:00 AM SGT is 10:00 AM JST.
What is 12 PM (noon) SGT in JST?
12:00 PM SGT is 1:00 PM JST.
Is JST ahead of or behind SGT?
JST is 1 hour ahead of SGT, so it is later in JST than in SGT.
Does SGT change for daylight saving time?
No. SGT 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 SGT and JST?
SGT and JST share 7 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 4:00 PM SGT lands between 10:00 AM and 5:00 PM JST, inside working hours for both.
Related conversions
Convert JST to SGT
Convert SGT to other time zones
Convert other time zones to JST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.