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.

Santiago to Tokyo

+12h

Santiago

CLSTSOURCE

Chile · UTC-03:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Tokyo

JST

Japan · UTC+09:00

HH12

MM00

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

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Santiago

Tokyo

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

About Tokyo

Wikipedia

Tokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.

Population:14 million

Metro:37.4 million

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

Currency:JPY (¥)

Stock Exchange:TSE (Tokyo Stock Exchange)

Key Landmarks

Tokyo TowerShibuya CrossingSenso-ji TempleImperial PalaceTokyo Skytree

Did You Know?

The Tokyo subway system moves approximately 8.7 million passengers daily.

Learn more about JST timezone →

Understanding the +12h Gap: Santiago vs Tokyo

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

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

Santiago to Tokyo time conversion table

Santiago (CLST)	Tokyo (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 Santiago to Tokyo time

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

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 Santiago takes the early slot, the next week Tokyo does.
Santiago: 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 Santiago and Tokyo

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

Business hours overlap

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

Santiago is 12 hours ahead of Tokyo (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

Santiago

☀ Currently in DST

Standard: UTC-04:00 · DST: UTC-03:00

Clocks fall back on Sun, Apr 4, 2027

Tokyo

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 Santiago and Tokyo?

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

How do I convert Santiago time to Tokyo time?

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

What time is it in Tokyo right now?

Tokyo 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 Santiago.

What is the best time to call Tokyo from Santiago?

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

Which is ahead, Santiago or Tokyo?

Santiago is 12 hours ahead of Tokyo. When it is 12:00 PM in Santiago it is 12:00 AM in Tokyo.

Do Santiago and Tokyo use different time zones?

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

Does daylight saving time affect the Santiago–Tokyo difference?

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

Which other cities share Santiago's time zone?

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

Which countries use CLST, Santiago's zone?

CLST is used in Chile.

Is there a day difference between Santiago and Tokyo?

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

What is the time difference between Santiago and Tokyo?

Tokyo is +12h from Santiago.

What timezone is Santiago in?

Santiago operates on its local timezone.

What timezone is Tokyo in?

Tokyo operates on Japan Standard Time (JST), which is 14 hours ahead of New York. As Asia's largest financial hub, Tokyo trading hours are crucial for global markets.

What are the business hours in Tokyo?

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

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.