What is 8 AM SGT in JST?
8 AM SGT = 9:00 AM JST (09:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
Timezone converter
SGT to JST currently uses Singapore Time in Asia/Singapore and Japan Time in Asia/Tokyo as the live reference pair. Right now the gap is +1h, and the sections below break that into meeting-time shortcuts, workday overlap, DST changes, and city coverage on both sides.
Last updated Apr 22, 2026. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.
From
Singapore Time
Asia/Singapore · GMT+8 +08:00
Major markets in this grouping include Singapore, Bedok New Town, Ulu Bedok, Tampines Estate.
To
Japan Time
Asia/Tokyo · GMT+9 +09:00
Major markets in this grouping include Tokyo, Yokohama, Osaka, Nagoya.
Current gap
+1h
SGT +08:00 vs JST +09:00
9-to-5 overlap
7h
SGT 9:00 AM previous day to 4:00 PM previous day
Representative countries
Singapore / Japan
Based on the busiest city and zone usage found in the current dataset.
SGT and JST currently connect Singapore and Tokyo with a live gap of +1h. Representative coverage on the SGT side is anchored by Singapore, Bedok New Town, Ulu Bedok, and Tampines Estate, while the JST side is anchored by Tokyo, Yokohama, Osaka, and Nagoya.
Using a simple 9:00 AM to 5:00 PM workday on both sides, the pair shares about 7 hours of business overlap - roughly SGT 9:00 AM previous day to 4:00 PM previous day, which is JST 10:00 AM previous day to 5:00 PM previous day. Most of the workday still lines up, which is helpful for live support, same-day reviews, and straightforward calendar invites.
The live gap is +1h right now, based on Asia/Singapore at +08:00 and Asia/Tokyo at +09:00. Neither reference zone shows an offset change in the next year, so the gap should stay stable.
On the SGT side, the current dataset is anchored by cities such as Singapore, Singapore; Bedok New Town, Singapore; Ulu Bedok, Singapore; Tampines Estate, Singapore; Jurong Town, Singapore; Tampines New Town, Singapore. That makes this page useful for real-world coordination patterns rather than only abstract offset math.
On the JST side, the live reference set includes Tokyo, Japan; Yokohama, Japan; Osaka, Japan; Nagoya, Japan; Sapporo, Japan; Fukuoka, Japan. In practice, that means the conversion is tied to recognizable business, travel, and support hubs rather than a single anonymous timezone label.
Country usage on the two sides currently includes Singapore for SGT and Japan for JST. That country coverage helps explain why some pairs feel like outsourcing, logistics, gaming, finance, or travel-heavy conversions while others are more niche.
Adjust the time — digits roll like an odometer. Swap button flips the zones.
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| SGT | JST | Day relation |
|---|---|---|
| 9:00 AM | 10:00 AMWed, Apr 22 | same day |
| 12:00 PM | 1:00 PMWed, Apr 22 | same day |
| 3:00 PM | 4:00 PMWed, Apr 22 | same day |
| 6:00 PM | 7:00 PMWed, Apr 22 | same day |
| 9:00 PM | 10:00 PMWed, Apr 22 | same day |
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| JST | SGT | Day relation |
|---|---|---|
| 9:00 AM | 8:00 AMThu, Apr 23 | same day |
| 12:00 PM | 11:00 AMThu, Apr 23 | same day |
| 3:00 PM | 2:00 PMThu, Apr 23 | same day |
| 6:00 PM | 5:00 PMThu, Apr 23 | same day |
| 9:00 PM | 8:00 PMThu, Apr 23 | same day |
SGT to JST meeting times is easiest to read as a working-day range rather than a single spot conversion. In the current snapshot, 9:00 AM lands at 10:00 AM, while 9:00 PM lands at 10:00 PM, which makes the practical handoff window much easier to scan.
JST to SGT meeting times is easiest to read as a working-day range rather than a single spot conversion. In the current snapshot, 9:00 AM lands at 8:00 AM, while 9:00 PM lands at 8:00 PM, which makes the practical handoff window much easier to scan.
These direct answers are here for the exact-intent searches people actually use, like “10 AM SGT to JST” or “4 PM SGT in JST”.
8 AM SGT = 9:00 AM JST (09:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
9 AM SGT = 10:00 AM JST (10:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
10 AM SGT = 11:00 AM JST (11:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
11 AM SGT = 12:00 PM JST (12:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
12 PM SGT = 1:00 PM JST (13:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
1 PM SGT = 2:00 PM JST (14:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
2 PM SGT = 3:00 PM JST (15:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
3 PM SGT = 4:00 PM JST (16:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
4 PM SGT = 5:00 PM JST (17:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
5 PM SGT = 6:00 PM JST (18:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
6 PM SGT = 7:00 PM JST (19:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
9 PM SGT = 10:00 PM JST (22:00). On today's live calendar that lands on Wed, Apr 22 in JST, which means the answer is a same day conversion rather than a static offset lookup.
The live gap is +1h right now, based on Asia/Singapore at +08:00 and Asia/Tokyo at +09:00. Neither reference zone shows an offset change in the next year, so the gap should stay stable.
The most usable workday block right now is about 7 hours: SGT 9:00 AM previous day to 4:00 PM previous day, which lines up with JST 10:00 AM previous day to 5:00 PM previous day.
Asia/Singapore
GMT+8 · +08:00
Asia/Tokyo
GMT+9 · +09:00
These are the busiest live references selected from the abbreviation families on this page.
| SGT | JST |
|---|---|
| 08:00 | 09:00 |
| 09:00 | 10:00 |
| 10:00 | 11:00 |
| 11:00 | 12:00 |
| 12:00 | 13:00 |
| 13:00 | 14:00 |
| 14:00 | 15:00 |
| 15:00 | 16:00 |
| 16:00 | 17:00 |
| 17:00 | 18:00 |
| 18:00 | 19:00 |
| 19:00 | 20:00 |
| 20:00 | 21:00 |
| 21:00 | 22:00 |
| 22:00 | 23:00 |
| 23:00 | 00:00 |
| 00:00 | 01:00 |
| 01:00 | 02:00 |
| 02:00 | 03:00 |
| 03:00 | 04:00 |
| 04:00 | 05:00 |
| 05:00 | 06:00 |
| 06:00 | 07:00 |
| 07:00 | 08:00 |
Countries represented here include Singapore.
Countries represented here include Japan.
Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.
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