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 Osaka

+2h

Jakarta

WIBSOURCE

Indonesia · UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Osaka

JST

Japan · UTC+09:00

HH02

MM00

14:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Jakarta

Osaka

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 JST on the World Map

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

WIB Zone

→

JST 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

JST – Japan Standard Time

UTC+09:00

Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.

Countries in JST

Japan

Major Cities in JST

TokyoOsakaYokohamaNagoyaSapporoKyotoKobeFukuokaHiroshima

Key Facts about JST

•Japan does not observe daylight saving time.
•Tokyo is the most populous metropolitan area in the world.
•The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
•JST is 14 hours ahead of EST and 9 hours ahead of GMT.

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

Learn more about JST 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 Osaka

Wikipedia

Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.

Population:2.8 million

Metro:19 million

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

Currency:JPY (¥)

Stock Exchange:OSE (Osaka Exchange - derivatives)

Key Landmarks

Osaka CastleDotonboriUniversal Studios JapanShitennoji TempleUmeda Sky Building

Did You Know?

Osaka Castle was originally built in 1583 and has been rebuilt several times.

Learn more about JST timezone →

Comparing Time Zones: Jakarta and Osaka

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

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

Jakarta to Osaka time conversion table

Jakarta (WIB)	Osaka (JST)	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 Osaka time

Scheduling a call from Jakarta to Osaka: a 10:00 AM start in Jakarta lands at 12:00 PM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Jakarta and Osaka are inside the 9-to-5 working day between 9:00 AM and 3:00 PM WIB time (11:00 AM–5:00 PM JST). That is roughly 6 hours of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in Jakarta is 10:00 PM in Osaka makes it easy to avoid calling at 3 AM.

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 Osaka 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 JST (Japan Standard Time)

Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.

Best time to call between Jakarta and Osaka

Both Jakarta and Osaka 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 JST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Jakarta and Osaka 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 Osaka (WIB UTC+07:00 → JST 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 Osaka?

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

How do I convert Jakarta time to Osaka time?

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

What time is it in Osaka right now?

Osaka uses JST 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 Osaka from Jakarta?

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

Which is ahead, Jakarta or Osaka?

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

Do Jakarta and Osaka use different time zones?

Jakarta (Indonesia) uses WIB at UTC+07:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are Asia/Jakarta and Asia/Tokyo.

Does daylight saving time affect the Jakarta–Osaka difference?

Neither zone observes daylight saving time, so the +2h offset between Jakarta and Osaka 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 Osaka?

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

What is the time difference between Jakarta and Osaka?

Osaka 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 Osaka in?

Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.

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 Osaka?

Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.

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

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

What currencies are used in Jakarta and Osaka?

Jakarta uses IDR (Rp) while Osaka uses JPY (¥). Check current exchange rates when planning travel or business between these cities.

How do Jakarta and Osaka compare in size?

Jakarta has a population of approximately 10.5 million (metro: 34.5 million), while Osaka has approximately 2.8 million (metro: 19 million).

What are the major landmarks in Jakarta and Osaka?

Jakarta is known for Monas, Istiqlal Mosque, Old Town (Kota Tua). Osaka is famous for Osaka Castle, Dotonbori, Universal Studios Japan.

Do Jakarta and Osaka have stock exchanges?

Yes. Jakarta has the IDX (Indonesia Stock Exchange) and Osaka has the OSE (Osaka Exchange - derivatives). The +2h time difference affects trading hour overlaps between these exchanges.