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Datos de ciudades por GeoNames (CC BY 4.0). Datos de zonas horarias de la Base de Datos de Zonas Horarias de IANA.

  1. WorldClockTools
  2. Convertidor de Zona Horaria
  3. KST -> BST

Timezone converter

Convertidor de KST a BST.

KST → BSTGap: -3h5h 9-5 overlap

KST to BST currently uses Korean Time in Asia/Seoul and Bangladesh Time in Asia/Dhaka as the live reference pair. Right now the gap is -3h, 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.

Reverse: BST → KST

Ambiguity note

BST is ambiguous in this dataset, so the live converter uses Asia/Dhaka as the busiest reference zone while the city list below shows the wider label family.

From

KST

Korean Time

Asia/Seoul · GMT+9 +09:00

--:--:--

Major markets in this grouping include Seoul, Busan, Pyongyang, Incheon.

To

BST

Bangladesh Time

Asia/Dhaka · GMT+6 +06:00

--:--:--

Major markets in this grouping include Dhaka, Chattogram, Gazipur, Khulna.

Scheduling snapshot

Current gap

-3h

KST +09:00 vs BST +06:00

9-to-5 overlap

5h

KST 12:00 PM previous day to 5:00 PM previous day

Representative countries

South Korea and North Korea / Bangladesh and Papua New Guinea

Based on the busiest city and zone usage found in the current dataset.

Pair context

KST and BST currently connect Seoul and Dhaka with a live gap of -3h. Representative coverage on the KST side is anchored by Seoul, Busan, Pyongyang, and Incheon, while the BST side is anchored by Dhaka, Chattogram, Gazipur, and Khulna.

Using a simple 9:00 AM to 5:00 PM workday on both sides, the pair shares about 5 hours of business overlap - roughly KST 12:00 PM previous day to 5:00 PM previous day, which is BST 9:00 AM previous day to 2:00 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 -3h right now, based on Asia/Seoul at +09:00 and Asia/Dhaka at +06:00. Neither reference zone shows an offset change in the next year, so the gap should stay stable.

Market coverage on both sides

On the KST side, the current dataset is anchored by cities such as Seoul, South Korea; Busan, South Korea; Pyongyang, North Korea; Incheon, South Korea; Daegu, South Korea; Daejeon, South Korea. That makes this page useful for real-world coordination patterns rather than only abstract offset math.

On the BST side, the live reference set includes Dhaka, Bangladesh; Chattogram, Bangladesh; Gazipur, Bangladesh; Khulna, Bangladesh; Rangpur, Bangladesh; Comilla, Bangladesh. 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 South Korea and North Korea for KST and Bangladesh and Papua New Guinea for BST. That country coverage helps explain why some pairs feel like outsourcing, logistics, gaming, finance, or travel-heavy conversions while others are more niche.

Digit-Roll Converter

Adjust the time — digits roll like an odometer. Swap button flips the zones.

FROM
1
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3
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TO
2
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Common meeting times

KST to BST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

KSTBSTDay relation
9:00 AM6:00 AMThu, Apr 23same day
12:00 PM9:00 AMThu, Apr 23same day
3:00 PM12:00 PMThu, Apr 23same day
6:00 PM3:00 PMThu, Apr 23same day
9:00 PM6:00 PMThu, Apr 23same day

BST to KST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

BSTKSTDay relation
9:00 AM12:00 PMWed, Apr 22same day
12:00 PM3:00 PMWed, Apr 22same day
3:00 PM6:00 PMWed, Apr 22same day
6:00 PM9:00 PMWed, Apr 22same day
9:00 PM12:00 AMThu, Apr 23next day

Operational notes

KST to BST 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 6:00 AM, while 9:00 PM lands at 6:00 PM, which makes the practical handoff window much easier to scan.

BST to KST 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 12:00 PM, while 9:00 PM lands at 12:00 AM, which makes the practical handoff window much easier to scan.

Popular hour answers

These direct answers are here for the exact-intent searches people actually use, like “10 AM KST to BST” or “4 PM KST in BST”.

8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM9 PM

What is 8 AM KST in BST?

8 AM KST = 5:00 AM BST (05:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 AM KST in BST?

9 AM KST = 6:00 AM BST (06:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 10 AM KST in BST?

10 AM KST = 7:00 AM BST (07:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 11 AM KST in BST?

11 AM KST = 8:00 AM BST (08:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 12 PM KST in BST?

12 PM KST = 9:00 AM BST (09:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 1 PM KST in BST?

1 PM KST = 10:00 AM BST (10:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 2 PM KST in BST?

2 PM KST = 11:00 AM BST (11:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 3 PM KST in BST?

3 PM KST = 12:00 PM BST (12:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 4 PM KST in BST?

4 PM KST = 1:00 PM BST (13:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 5 PM KST in BST?

5 PM KST = 2:00 PM BST (14:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 6 PM KST in BST?

6 PM KST = 3:00 PM BST (15:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 PM KST in BST?

9 PM KST = 6:00 PM BST (18:00). On today's live calendar that lands on Thu, Apr 23 in BST, which means the answer is a same day conversion rather than a static offset lookup.

Overlap window and DST radar

The live gap is -3h right now, based on Asia/Seoul at +09:00 and Asia/Dhaka at +06:00. 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 5 hours: KST 12:00 PM previous day to 5:00 PM previous day, which lines up with BST 9:00 AM previous day to 2:00 PM previous day.

Reference zones

Asia/Seoul

GMT+9 · +09:00

Asia/Dhaka

GMT+6 · +06:00

These are the busiest live references selected from the abbreviation families on this page.

Tabla de Conversión

KSTBST
09:0006:00
10:0007:00
11:0008:00
12:0009:00
13:0010:00
14:0011:00
15:0012:00
16:0013:00
17:0014:00
18:0015:00
19:0016:00
20:0017:00
21:0018:00
22:0019:00
23:0020:00
00:0021:00
01:0022:00
02:0023:00
03:0000:00
04:0001:00
05:0002:00
06:0003:00
07:0004:00
08:0005:00

Top cities using KST

Countries represented here include South Korea and North Korea.

SeoulSouth KoreaBusanSouth KoreaPyongyangNorth KoreaIncheonSouth KoreaDaeguSouth KoreaDaejeonSouth KoreaGwangjuSouth KoreaSuwonSouth KoreaUlsanSouth KoreaGoyang-siSouth Korea

Top cities using BST

Countries represented here include Bangladesh and Papua New Guinea.

DhakaBangladeshChattogramBangladeshGazipurBangladeshKhulnaBangladeshRangpurBangladeshComillaBangladeshRajshahiBangladeshPallabiBangladeshMirpur Model ThanaBangladeshMohammadpurBangladesh

FAQ

How many hours is BST ahead of KST?
BST is currently -3h relative to KST, using Asia/Seoul and Asia/Dhaka as the live reference zones on this page.
What is the best workday overlap between KST and BST?
The current 9-to-5 overlap is about 5 hours: KST 12:00 PM previous day to 5:00 PM previous day, which matches BST 9:00 AM previous day to 2:00 PM previous day.
Does the KST-BST time difference change during DST?
The live gap is -3h right now, based on Asia/Seoul at +09:00 and Asia/Dhaka at +06:00. Neither reference zone shows an offset change in the next year, so the gap should stay stable.
Which cities commonly use KST and BST?
KST commonly covers cities such as Seoul, Busan, Pyongyang, and Incheon, while BST commonly covers cities such as Dhaka, Chattogram, Gazipur, and Khulna.
Should I use KST/BST or exact IANA zones?
Use the abbreviations for a quick read, but use exact IANA zones such as Asia/Seoul and Asia/Dhaka when you need something precise in software, travel plans, or long-range scheduling.
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Conversiones Relacionadas

EST → BSTEST → KSTPST → BSTPST → KSTCST → BSTCST → KSTMST → BSTMST → KSTGMT → BSTGMT → KSTUTC → BSTUTC → KST

Related planning pages

Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.

Interactive converter

Move from this static pair into the full timezone converter with more cities and abbreviations.

Compare city pairs

Use compare pages when the practical question is overlap, not just offset arithmetic.

World clock

Open live city clocks after narrowing the timezone pair you care about.

Browse city pages

Jump into the strongest city pages when you want location-specific timezone context.