JST to SGT Converter
SGT is 1 hour behind JST
JST to SGT Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in SGT
| JST | SGT |
|---|---|
| 12:00 AM | 11:00 PM -1d |
| 1:00 AM | 12:00 AM |
| 2:00 AM | 1:00 AM |
| 3:00 AM | 2:00 AM |
| 4:00 AM | 3:00 AM |
| 5:00 AM | 4:00 AM |
| 6:00 AM | 5:00 AM |
| 7:00 AM | 6:00 AM |
| 8:00 AM | 7:00 AM |
| 9:00 AM | 8:00 AM |
| 10:00 AM | 9:00 AM |
| 11:00 AM | 10:00 AM |
| 12:00 PM | 11:00 AM |
| 1:00 PM | 12:00 PM |
| 2:00 PM | 1:00 PM |
| 3:00 PM | 2:00 PM |
| 4:00 PM | 3:00 PM |
| 5:00 PM | 4:00 PM |
| 6:00 PM | 5:00 PM |
| 7:00 PM | 6:00 PM |
| 8:00 PM | 7:00 PM |
| 9:00 PM | 8:00 PM |
| 10:00 PM | 9:00 PM |
| 11:00 PM | 10:00 PM |
Converting Japan Standard Time to Singapore Time
Japan Standard Time (JST) and Singapore Time (SGT) are separated by a 1 hour time difference. SGT is 1 hour behind JST. JST is UTC+9, used in Japan, while SGT is UTC+8, used in Singapore.
When converting from JST to SGT, the key reference points to remember are: 9:00 AM JST equals 8:00 AM SGT, 12:00 PM noon JST equals 11:00 AM SGT, and 5:00 PM JST equals 4:00 PM SGT. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across JST and SGT
For professionals scheduling meetings between JST and SGT, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 1 hour difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
JST does not observe Daylight Saving Time, maintaining UTC+9 year-round. SGT does not observe DST, staying at UTC+8 year-round.