Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

Chicago to Jakarta

+12h

Chicago

CDTSOURCE

USA · UTC-05:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Jakarta

WIB

Indonesia · UTC+07:00

HH12

MM00

(next day)00:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Chicago

Jakarta

12:00 AM

12:00 PM

2:00 AM

2:00 PM

4:00 AM

4:00 PM

6:00 AM

6:00 PM

8:00 AM

8:00 PM

10:00 AM

10:00 PM

12:00 PM

12:00 AM+1

2:00 PM

2:00 AM+1

4:00 PM

4:00 AM+1

6:00 PM

6:00 AM+1

8:00 PM

8:00 AM+1

10:00 PM

10:00 AM+1

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

CDT and WIB on the World Map

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

CDT Zone

→

WIB Zone

Explore all world timezones interactively →

CST – Central Standard Time

UTC-06:00

Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.

Countries in CST

United States (Central)Canada (Manitoba, Saskatchewan)MexicoGuatemalaHondurasEl SalvadorCosta RicaNicaraguaBelize

Major Cities in CST

ChicagoHoustonDallasSan AntonioMexico CityAustinWinnipegMemphisMilwaukeeNashvilleKansas CityNew OrleansMinneapolisGuatemala City

Key Facts about CST

•CST covers 20 US states fully or partially.
•Chicago and Houston are the two largest cities in the Central Time Zone.
•Mexico City, one of the world's most populous cities, operates on CST.
•CST is 1 hour behind EST and 2 hours ahead of PST.

Daylight Saving:Yes – switches to CDT

Learn more about CST on Wikipedia

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

About Chicago

Wikipedia

Chicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.

Population:2.7 million

Metro:9.5 million

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

Currency:USD ($)

Stock Exchange:CME (Chicago Mercantile Exchange), CBOE

Key Landmarks

Willis TowerMillennium ParkCloud Gate (The Bean)Navy PierArt Institute of Chicago

Did You Know?

The Chicago Board of Trade is the world's oldest futures and options exchange.

Learn more about CDT timezone →

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 →

Understanding the +12h Gap: Chicago vs Jakarta

Chicago runs on Central Daylight Time (CDT) at UTC-05:00, currently observing daylight saving time. Jakarta runs on Western Indonesia Time (WIB) at UTC+07:00. That puts Chicago 12 hours ahead of Jakarta — a difference of +12h at the current offsets.

In practice, when it is 9:00 AM in Chicago it is 9:00 PM in Jakarta. Midnight in Chicago is 12:00 PM in Jakarta.Chicago observes daylight saving time while Jakarta does not, so the gap narrows or widens by an hour part of the year.

Chicago to Jakarta time conversion table

Chicago (CDT)	Jakarta (WIB)	Day
12:00 AM	12:00 PM	same day
6:00 AM	6:00 PM	same day
7:00 AM	7:00 PM	same day
8:00 AM	8:00 PM	same day
9:00 AM	9:00 PM	same day
12:00 PM	12:00 AM	next day
3:00 PM	3:00 AM	next day
5:00 PM	5:00 AM	next day
6:00 PM	6:00 AM	next day
9:00 PM	9:00 AM	next day

Why people convert Chicago to Jakarta time

Scheduling a call from Chicago to Jakarta: a 10:00 AM start in Chicago lands at 10:00 PM in Jakarta, so you can confirm the slot without doing the arithmetic yourself.
Handling a +12h gap: Chicago and Jakarta have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Jakarta is 9:00 PM in Chicago.
Watching a live event or market open: Chicago viewers need 9:00 PM in Jakarta to catch a 9:00 AM start there, and 12:00 PM if the event is anchored to Chicago.

Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a +12h gap is not.
With a +12h gap there is no shared 9-to-5 window, so alternate the early start: one week Chicago takes the early slot, the next week Jakarta does.
Chicago: Clocks fall back on Sun, Nov 1, 2026. Re-check this page after that date because the offset changes and so does the +12h gap.

About CST (Central Standard Time)

Central Standard Time (CST) covers the central region of North America. It is the second most populous time zone in the US, including major cities like Chicago, Houston, and Dallas. CST is also used in Mexico City and much of Central America including Guatemala, Honduras, El Salvador, and Costa Rica. During summer, most of the US and Canada switch to Central Daylight Time (CDT, UTC-05:00), while Mexico and Central American countries generally remain on CST.

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.

Best time to call between Chicago and Jakarta

With a +12h offset there is no overlap inside a normal 9 AM – 5 PM day. Jakarta opens at 9:00 AM WIB, which is 9:00 PM in Chicago, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Chicago and Jakarta have no shared working hours because of the +12h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Chicago is 12 hours ahead of Jakarta (CDT UTC-05:00 → WIB UTC+07:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Chicago

☀ Currently in DST

Standard: UTC-06:00 · DST: UTC-05:00

Clocks fall back on Sun, Nov 1, 2026

Jakarta

Does not observe DST

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 Chicago and Jakarta?

Chicago (CDT, UTC-05:00) is 12 hours ahead of Jakarta (WIB, UTC+07:00). The gap is currently +12h.

How do I convert Chicago time to Jakarta time?

Add +12h to Chicago local time. For example, 9:00 AM in Chicago is 9:00 PM in Jakarta.

What time is it in Jakarta right now?

Jakarta uses WIB at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +12h offset from Chicago.

What is the best time to call Jakarta from Chicago?

There is no shared working-hours window because of the +12h gap. The closest option is 1:00 PM in Chicago, which is 1:00 AM in Jakarta.

Which is ahead, Chicago or Jakarta?

Chicago is 12 hours ahead of Jakarta. When it is 12:00 PM in Chicago it is 12:00 AM in Jakarta.

Do Chicago and Jakarta use different time zones?

Chicago (USA) uses CDT at UTC-05:00, while Jakarta (Indonesia) uses WIB at UTC+07:00. The IANA identifiers are America/Chicago and Asia/Jakarta.

Does daylight saving time affect the Chicago–Jakarta difference?

Yes at the moment: Chicago is on daylight saving time and Jakarta is not, so the +12h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Chicago's time zone?

CDT also covers Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis and 6 more.

Which countries use CDT, Chicago's zone?

CDT is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, Costa Rica, Nicaragua and 1 more.

Is there a day difference between Chicago and Jakarta?

Sometimes. The +12h gap is large enough that 8:00 PM or later in Chicago already falls on the next day in Jakarta.

What is the time difference between Chicago and Jakarta?

Jakarta is +12h from Chicago.

What timezone is Chicago in?

Chicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.

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 are the business hours in Chicago?

Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.

What are the business hours in Jakarta?

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

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

The best overlap for a call is when both cities are in business hours. Chicago works 8:00 AM - 5:00 PM CST and Jakarta works 8:00 AM - 5:00 PM WIB (+12h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Chicago and Jakarta?

Chicago uses USD ($) while Jakarta uses IDR (Rp). Check current exchange rates when planning travel or business between these cities.

How do Chicago and Jakarta compare in size?

Chicago has a population of approximately 2.7 million (metro: 9.5 million), while Jakarta has approximately 10.5 million (metro: 34.5 million).

What are the major landmarks in Chicago and Jakarta?

Chicago is known for Willis Tower, Millennium Park, Cloud Gate (The Bean). Jakarta is famous for Monas, Istiqlal Mosque, Old Town (Kota Tua).

Do Chicago and Jakarta have stock exchanges?

Yes. Chicago has the CME (Chicago Mercantile Exchange), CBOE and Jakarta has the IDX (Indonesia Stock Exchange). The +12h time difference affects trading hour overlaps between these exchanges.