What is 8 AM JST in GST?
8 AM JST = 3:00 AM GST (03:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
Timezone converter
JST to GST currently uses Japan Time in Asia/Tokyo and Gulf Time in Asia/Dubai as the live reference pair. Right now the gap is -5h, 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.
GST is ambiguous in this dataset, so the live converter uses Asia/Dubai as the busiest reference zone while the city list below shows the wider label family.
From
Japan Time
Asia/Tokyo · GMT+9 +09:00
Major markets in this grouping include Tokyo, Yokohama, Osaka, Nagoya.
To
Gulf Time
Asia/Dubai · GMT+4 +04:00
Major markets in this grouping include Dubai, Abu Dhabi, Sharjah, Al Ain City.
Current gap
-5h
JST +09:00 vs GST +04:00
9-to-5 overlap
3h
JST 2:00 PM previous day to 5:00 PM previous day
Representative countries
Japan / United Arab Emirates, Oman, and South Georgia and the South Sandwich Islands
Based on the busiest city and zone usage found in the current dataset.
JST and GST currently connect Tokyo and Dubai with a live gap of -5h. Representative coverage on the JST side is anchored by Tokyo, Yokohama, Osaka, and Nagoya, while the GST side is anchored by Dubai, Abu Dhabi, Sharjah, and Al Ain City.
Using a simple 9:00 AM to 5:00 PM workday on both sides, the pair shares about 3 hours of business overlap - roughly JST 2:00 PM previous day to 5:00 PM previous day, which is GST 9:00 AM previous day to 12:00 PM previous day. There is still a usable shared block in the morning or afternoon, so teams can usually meet without pushing too far outside standard hours.
The live gap is -5h right now, based on Asia/Tokyo at +09:00 and Asia/Dubai at +04:00. 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 GST side, the live reference set includes Dubai, United Arab Emirates; Abu Dhabi, United Arab Emirates; Sharjah, United Arab Emirates; Al Ain City, United Arab Emirates; Muscat, Oman; Ajman, United Arab Emirates. 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 United Arab Emirates, Oman, and South Georgia and the South Sandwich Islands for GST. 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 | GST | Day relation |
|---|---|---|
| 9:00 AM | 4:00 AMWed, Apr 22 | same day |
| 12:00 PM | 7:00 AMWed, Apr 22 | same day |
| 3:00 PM | 10:00 AMWed, Apr 22 | same day |
| 6:00 PM | 1:00 PMWed, Apr 22 | same day |
| 9:00 PM | 4:00 PMWed, Apr 22 | same day |
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| GST | JST | Day relation |
|---|---|---|
| 9:00 AM | 2:00 PMWed, Apr 22 | same day |
| 12:00 PM | 5:00 PMWed, Apr 22 | same day |
| 3:00 PM | 8:00 PMWed, Apr 22 | same day |
| 6:00 PM | 11:00 PMWed, Apr 22 | same day |
| 9:00 PM | 2:00 AMThu, Apr 23 | next day |
JST to GST 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 4:00 AM, while 9:00 PM lands at 4:00 PM, which makes the practical handoff window much easier to scan.
GST 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 2:00 PM, while 9:00 PM lands at 2:00 AM, 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 GST” or “4 PM JST in GST”.
8 AM JST = 3:00 AM GST (03:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
9 AM JST = 4:00 AM GST (04:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
10 AM JST = 5:00 AM GST (05:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
11 AM JST = 6:00 AM GST (06:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
12 PM JST = 7:00 AM GST (07:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
1 PM JST = 8:00 AM GST (08:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
2 PM JST = 9:00 AM GST (09:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
3 PM JST = 10:00 AM GST (10:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
4 PM JST = 11:00 AM GST (11:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
5 PM JST = 12:00 PM GST (12:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
6 PM JST = 1:00 PM GST (13:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
9 PM JST = 4:00 PM GST (16:00). On today's live calendar that lands on Wed, Apr 22 in GST, which means the answer is a same day conversion rather than a static offset lookup.
The live gap is -5h right now, based on Asia/Tokyo at +09:00 and Asia/Dubai at +04:00. 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 3 hours: JST 2:00 PM previous day to 5:00 PM previous day, which lines up with GST 9:00 AM previous day to 12:00 PM previous day.
Asia/Tokyo
GMT+9 · +09:00
Asia/Dubai
GMT+4 · +04:00
These are the busiest live references selected from the abbreviation families on this page.
| JST | GST |
|---|---|
| 09:00 | 04:00 |
| 10:00 | 05:00 |
| 11:00 | 06:00 |
| 12:00 | 07:00 |
| 13:00 | 08:00 |
| 14:00 | 09:00 |
| 15:00 | 10:00 |
| 16:00 | 11:00 |
| 17:00 | 12:00 |
| 18:00 | 13:00 |
| 19:00 | 14:00 |
| 20:00 | 15:00 |
| 21:00 | 16:00 |
| 22:00 | 17:00 |
| 23:00 | 18:00 |
| 00:00 | 19:00 |
| 01:00 | 20:00 |
| 02:00 | 21:00 |
| 03:00 | 22:00 |
| 04:00 | 23:00 |
| 05:00 | 00:00 |
| 06:00 | 01:00 |
| 07:00 | 02:00 |
| 08:00 | 03:00 |
Countries represented here include Japan.
Countries represented here include United Arab Emirates, Oman, and South Georgia and the South Sandwich Islands.
Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.
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