Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

Jakarta to Seoul

+2h

Jakarta

WIBSOURCE

Indonesia · UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Seoul

KST

South Korea · UTC+09:00

HH02

MM00

14:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Jakarta

Seoul

12:00 AM

2:00 AM

4:00 AM

6:00 AM

8:00 AM

10:00 AM

12:00 PM

2:00 PM

4:00 PM

6:00 PM

8:00 PM

10:00 PM

12:00 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

WIB and KST on the World Map

The map below highlights the WIB (Western Indonesia Time) and KST (Korea Standard Time) timezone regions across the globe.

WIB Zone

→

KST Zone

Explore all world timezones interactively →

WIB – Western Indonesia Time

UTC+07:00

Western Indonesia Time (WIB, UTC+07:00) covers Java, Sumatra and West Kalimantan, including Jakarta.

Countries in WIB

Indonesia (Java, Sumatra, West Kalimantan)

Major Cities in WIB

JakartaSurabayaBandungMedanPalembang

Key Facts about WIB

•Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00).
•Indonesia has not observed daylight saving time since 1964.
•Jakarta is the largest city in Southeast Asia by population.
•WIB shares the UTC+07:00 offset with Indochina Time.

Daylight Saving:No – UTC+07:00 year-round

Learn more about WIB on Wikipedia

KST – Korea Standard Time

UTC+09:00

Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.

Countries in KST

South KoreaNorth Korea

Major Cities in KST

SeoulBusanIncheonDaeguDaejeonPyongyang

Key Facts about KST

•South Korea does not observe daylight saving time.
•Seoul is home to Samsung, LG, and Hyundai headquarters.
•KST is the same offset as JST (UTC+09:00).

Daylight Saving:No – UTC+09:00 year-round

Learn more about KST on Wikipedia

About Jakarta

Wikipedia

Jakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.

Population:10.5 million

Metro:34.5 million

Business Hours:8:00 AM - 5:00 PM WIB

Currency:IDR (Rp)

Stock Exchange:IDX (Indonesia Stock Exchange)

Key Landmarks

MonasIstiqlal MosqueOld Town (Kota Tua)Taman MiniAncol Dreamland

Did You Know?

Indonesia has 3 time zones; Jakarta uses Western Indonesia Time (WIB).

Learn more about WIB timezone →

About Seoul

Wikipedia

Seoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.

Population:9.7 million

Metro:25.5 million

Business Hours:9:00 AM - 6:00 PM KST

Currency:KRW (₩)

Stock Exchange:KRX (Korea Exchange)

Key Landmarks

Gyeongbokgung PalaceN Seoul TowerBukchon Hanok VillageDongdaemun Design PlazaCheonggyecheon Stream

Did You Know?

Seoul has the fastest average internet speed in the world.

Learn more about KST timezone →

Jakarta vs Seoul: Offsets, DST and Best Call Times

Jakarta runs on Western Indonesia Time (WIB) at UTC+07:00. Seoul runs on Korean Standard Time (KST) at UTC+09:00. That puts Jakarta 2 hours ahead of Seoul — a difference of +2h at the current offsets.

In practice, when it is 9:00 AM in Jakarta it is 11:00 AM in Seoul. Midnight in Jakarta is 2:00 AM in Seoul. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Jakarta to Seoul time conversion table

Jakarta (WIB)	Seoul (KST)	Day
12:00 AM	2:00 AM	same day
6:00 AM	8:00 AM	same day
7:00 AM	9:00 AM	same day
8:00 AM	10:00 AM	same day
9:00 AM	11:00 AM	same day
12:00 PM	2:00 PM	same day
3:00 PM	5:00 PM	same day
5:00 PM	7:00 PM	same day
6:00 PM	8:00 PM	same day
9:00 PM	11:00 PM	same day

Why people convert Jakarta to Seoul time

Scheduling a call from Jakarta to Seoul: a 10:00 AM start in Jakarta lands at 12:00 PM in Seoul, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Jakarta and Seoul are inside the 9-to-5 working day between 9:00 AM and 3:00 PM WIB time (11:00 AM–5:00 PM KST). That is roughly 6 hours of usable overlap.
Coordinating a Jakarta-based team with Seoul contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM WIB" is unambiguous; "3 PM" across a +2h gap is not.
Block 9:00 AM–3:00 PM WIB as the recurring meeting window if you work primarily from Jakarta and need Seoul colleagues present.

About WIB (Western Indonesia Time)

Western Indonesia Time (WIB, Waktu Indonesia Barat) is one of Indonesia's three time zones, fixed at UTC+07:00 all year. It covers Java, Sumatra, West Kalimantan and the provinces around them — home to Jakarta, the country's capital and largest city, plus Surabaya and Bandung. Indonesia does not observe daylight saving time, so WIB never shifts. WIB shares its UTC+07:00 offset with Indochina Time (ICT) and Christmas Island Time, but is a distinct zone covering the western half of the Indonesian archipelago. The country's other zones are WITA (UTC+08:00) in the centre and WIT (UTC+09:00) in the east.

About KST (Korea Standard Time)

Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.

Best time to call between Jakarta and Seoul

Both Jakarta and Seoul sit inside the 9 AM – 5 PM working day between 9:00 AM–3:00 PM WIB, which is 11:00 AM–5:00 PM KST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Jakarta and Seoul share 6 hours of working-hours overlap (9:00 AM–3:00 PM WIB), so scheduling a live meeting is straightforward.

Jakarta is 2 hours ahead of Seoul (WIB UTC+07:00 → KST UTC+09:00). The shared working window is 9:00 AM–3:00 PM WIB. Remember to re-check around daylight-saving transitions.

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Jakarta and Seoul?

Jakarta (WIB, UTC+07:00) is 2 hours ahead of Seoul (KST, UTC+09:00). The gap is currently +2h.

How do I convert Jakarta time to Seoul time?

Add +2h to Jakarta local time. For example, 9:00 AM in Jakarta is 11:00 AM in Seoul.

What time is it in Seoul right now?

Seoul uses KST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +2h offset from Jakarta.

What is the best time to call Seoul from Jakarta?

Call between 9:00 AM and 3:00 PM WIB — that maps to 11:00 AM–5:00 PM KST and keeps both parties inside the working day.

Which is ahead, Jakarta or Seoul?

Jakarta is 2 hours ahead of Seoul. When it is 12:00 PM in Jakarta it is 2:00 PM in Seoul.

Do Jakarta and Seoul use different time zones?

Jakarta (Indonesia) uses WIB at UTC+07:00, while Seoul (South Korea) uses KST at UTC+09:00. The IANA identifiers are Asia/Jakarta and Asia/Seoul.

Does daylight saving time affect the Jakarta–Seoul difference?

Neither zone observes daylight saving time, so the +2h offset between Jakarta and Seoul is fixed all year.

Which other cities share Jakarta's time zone?

WIB also covers Jakarta, Surabaya, Bandung, Medan, Palembang.

Which countries use WIB, Jakarta's zone?

WIB is used in Indonesia (Java, Sumatra, West Kalimantan).

Is there a day difference between Jakarta and Seoul?

Not normally. The +2h gap only pushes the date over for late-evening times.

What is the time difference between Jakarta and Seoul?

Seoul is +2h from Jakarta.

What timezone is Jakarta in?

Jakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.

What timezone is Seoul in?

Seoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.

What are the business hours in Jakarta?

Standard business hours in Jakarta are 8:00 AM - 5:00 PM WIB.

What are the business hours in Seoul?

Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.

What is the best time to schedule a call between Jakarta and Seoul?

The best overlap for a call is when both cities are in business hours. Jakarta works 8:00 AM - 5:00 PM WIB and Seoul works 9:00 AM - 6:00 PM KST (+2h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Jakarta and Seoul?

Jakarta uses IDR (Rp) while Seoul uses KRW (₩). Check current exchange rates when planning travel or business between these cities.

How do Jakarta and Seoul compare in size?

Jakarta has a population of approximately 10.5 million (metro: 34.5 million), while Seoul has approximately 9.7 million (metro: 25.5 million).

What are the major landmarks in Jakarta and Seoul?

Jakarta is known for Monas, Istiqlal Mosque, Old Town (Kota Tua). Seoul is famous for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village.

Do Jakarta and Seoul have stock exchanges?

Yes. Jakarta has the IDX (Indonesia Stock Exchange) and Seoul has the KRX (Korea Exchange). The +2h time difference affects trading hour overlaps between these exchanges.