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.

Chile to JST

+12h

Chile

CLSTSOURCE

UTC-03:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

JST

UTC+09:00

HH12

MM00

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

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Chile

JST

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)

CLST and JST on the World Map

The map below highlights the CLST (Chile Standard Time) and JST (Japan Standard Time) timezone regions across the globe.

CLST Zone

→

JST Zone

Explore all world timezones interactively →

CLT – Chile Standard Time

UTC-04:00

Chile Standard Time (CLT) is the time zone for continental Chile, 4 hours behind UTC.

Countries in CLT

Chile

Major Cities in CLT

SantiagoValparaísoConcepciónViña del MarAntofagasta

Key Facts about CLT

•Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer.
•Santiago is the largest city in Chile with over 6 million in the metro area.
•Chile spans over 4,300 km from north to south but uses one timezone.

Daylight Saving:Yes – switches to CLST

Learn more about CLT 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

Chile vs JST: Offsets, DST and Best Call Times

Chile runs on Chile Summer Time (CLST) at UTC-03:00, currently observing daylight saving time. JST runs on Japan Standard Time (JST) at UTC+09:00. That puts Chile 12 hours ahead of JST — a difference of +12h at the current offsets.

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

Chile to JST time conversion table

Chile (CLST)	JST (JST)	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 Chile to JST time

Scheduling a call from Chile to JST: a 10:00 AM start in Chile lands at 10:00 PM in JST, so you can confirm the slot without doing the arithmetic yourself.
Handling a +12h gap: Chile and JST 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 JST is 9:00 PM in Chile.
Watching a live event or market open: Chile viewers need 9:00 PM in JST to catch a 9:00 AM start there, and 12:00 PM if the event is anchored to Chile.

Always state the zone abbreviation, not just the hour. "3:00 PM CLST" 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 Chile takes the early slot, the next week JST does.
Chile: Clocks fall back on Sun, Apr 4, 2027. Re-check this page after that date because the offset changes and so does the +12h gap.

About CLT (Chile Standard Time)

Chile Standard Time (CLT) is the standard time in Chile. During summer months (October to March), Chile switches to Chile Summer Time (CLST, UTC-03:00). Chile is the longest north-south country in the world.

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 Chile and JST

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

Business hours overlap

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

Chile is 12 hours ahead of JST (CLST UTC-03:00 → JST UTC+09:00). 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

Chile

☀ Currently in DST

Standard: UTC-04:00 · DST: UTC-03:00

Clocks fall back on Sun, Apr 4, 2027

JST

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 Chile and JST?

Chile (CLST, UTC-03:00) is 12 hours ahead of JST (JST, UTC+09:00). The gap is currently +12h.

How do I convert Chile time to JST time?

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

What time is it in JST right now?

JST 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 +12h offset from Chile.

What is the best time to call JST from Chile?

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

Which is ahead, Chile or JST?

Chile is 12 hours ahead of JST. When it is 12:00 PM in Chile it is 12:00 AM in JST.

Do Chile and JST use different time zones?

Chile (Chile) uses CLST at UTC-03:00, while JST uses JST at UTC+09:00. The IANA identifiers are America/Santiago and Asia/Tokyo.

Does daylight saving time affect the Chile–JST difference?

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

Which other cities share Chile's time zone?

CLST also covers Santiago, Valparaíso, Concepción, Viña del Mar, Antofagasta.

Which countries use CLST, Chile's zone?

CLST is used in Chile.

Is there a day difference between Chile and JST?

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

What is the time difference between Chile and JST?

JST is +12h from Chile.

What timezone is Chile in?

Chile operates on its local timezone.

What timezone is JST in?

JST operates on its local timezone.

Which countries use CLT (Chile Standard Time)?

CLT is used in Chile.

Does CLT observe daylight saving time?

Yes, CLT switches to CLST during summer months.

What are some interesting facts about CLT?

Chile observes daylight saving time, switching to CLST (UTC-03:00) in summer. Santiago is the largest city in Chile with over 6 million in the metro area.