What is 8 AM JST in SGT?
8 AM JST = 7:00 AM SGT (07:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
Timezone converter
JST to SGT currently uses Japan Time in Asia/Tokyo and Singapore Time in Asia/Singapore 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
Japan Time
Asia/Tokyo · GMT+9 +09:00
Major markets in this grouping include Tokyo, Yokohama, Osaka, Nagoya.
To
Singapore Time
Asia/Singapore · GMT+8 +08:00
Major markets in this grouping include Singapore, Bedok New Town, Ulu Bedok, Tampines Estate.
Current gap
-1h
JST +09:00 vs SGT +08:00
9-to-5 overlap
7h
JST 10:00 AM previous day to 5:00 PM previous day
Representative countries
Japan / Singapore
Based on the busiest city and zone usage found in the current dataset.
JST and SGT currently connect Tokyo and Singapore with a live gap of -1h. Representative coverage on the JST side is anchored by Tokyo, Yokohama, Osaka, and Nagoya, while the SGT side is anchored by Singapore, Bedok New Town, Ulu Bedok, and Tampines Estate.
Using a simple 9:00 AM to 5:00 PM workday on both sides, the pair shares about 7 hours of business overlap - roughly JST 10:00 AM previous day to 5:00 PM previous day, which is SGT 9:00 AM previous day to 4:00 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/Tokyo at +09:00 and Asia/Singapore at +08:00. Neither reference zone shows an offset change in the next year, so the gap should stay stable.
On the JST side, the current dataset is anchored by cities such as Tokyo, Japan; Yokohama, Japan; Osaka, Japan; Nagoya, Japan; Sapporo, Japan; Fukuoka, Japan. That makes this page useful for real-world coordination patterns rather than only abstract offset math.
On the SGT side, the live reference set includes Singapore, Singapore; Bedok New Town, Singapore; Ulu Bedok, Singapore; Tampines Estate, Singapore; Jurong Town, Singapore; Tampines New Town, Singapore. 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 Japan for JST and Singapore for SGT. 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.
| JST | SGT | Day relation |
|---|---|---|
| 9:00 AM | 8:00 AMWed, Apr 22 | same day |
| 12:00 PM | 11:00 AMWed, Apr 22 | same day |
| 3:00 PM | 2:00 PMWed, Apr 22 | same day |
| 6:00 PM | 5:00 PMWed, Apr 22 | same day |
| 9:00 PM | 8:00 PMWed, Apr 22 | same day |
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| 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 |
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.
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.
These direct answers are here for the exact-intent searches people actually use, like “10 AM JST to SGT” or “4 PM JST in SGT”.
8 AM JST = 7:00 AM SGT (07:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
9 AM JST = 8:00 AM SGT (08:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
10 AM JST = 9:00 AM SGT (09:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
11 AM JST = 10:00 AM SGT (10:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
12 PM JST = 11:00 AM SGT (11:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
1 PM JST = 12:00 PM SGT (12:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
2 PM JST = 1:00 PM SGT (13:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
3 PM JST = 2:00 PM SGT (14:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
4 PM JST = 3:00 PM SGT (15:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
5 PM JST = 4:00 PM SGT (16:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
6 PM JST = 5:00 PM SGT (17:00). On today's live calendar that lands on Wed, Apr 22 in SGT, which means the answer is a same day conversion rather than a static offset lookup.
9 PM JST = 8:00 PM SGT (20:00). On today's live calendar that lands on Wed, Apr 22 in SGT, 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/Tokyo at +09:00 and Asia/Singapore at +08:00. 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: JST 10:00 AM previous day to 5:00 PM previous day, which lines up with SGT 9:00 AM previous day to 4:00 PM previous day.
Asia/Tokyo
GMT+9 · +09:00
Asia/Singapore
GMT+8 · +08:00
These are the busiest live references selected from the abbreviation families on this page.
| JST | SGT |
|---|---|
| 09:00 | 08:00 |
| 10:00 | 09:00 |
| 11:00 | 10:00 |
| 12:00 | 11:00 |
| 13:00 | 12:00 |
| 14:00 | 13:00 |
| 15:00 | 14:00 |
| 16:00 | 15:00 |
| 17:00 | 16:00 |
| 18:00 | 17:00 |
| 19:00 | 18:00 |
| 20:00 | 19:00 |
| 21:00 | 20:00 |
| 22:00 | 21:00 |
| 23:00 | 22:00 |
| 00:00 | 23:00 |
| 01:00 | 00:00 |
| 02:00 | 01:00 |
| 03:00 | 02:00 |
| 04:00 | 03:00 |
| 05:00 | 04:00 |
| 06:00 | 05:00 |
| 07:00 | 06:00 |
| 08:00 | 07:00 |
Countries represented here include Japan.
Countries represented here include Singapore.
Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.
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