CLT to Japan
+13hCLT
CLTSOURCEJapan
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
CLT and JST on the World Map
The map below highlights the CLT (Chile Standard Time) and JST (Japan Standard Time) timezone regions across the globe.
CLT – Chile Standard Time
UTC-04:00Chile Standard Time (CLT) is the time zone for continental Chile, 4 hours behind UTC.
- •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.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •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.
CLT to Japan Time Difference – Complete Guide
CLT runs on Chile Standard Time (CLT) at UTC-04:00. Japan runs on Japan Standard Time (JST) at UTC+09:00. That puts CLT 13 hours ahead of Japan — a difference of +13h at the current offsets.
In practice, when it is 9:00 AM in CLT it is 10:00 PM in Japan. Midnight in CLT is 1:00 PM in Japan. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CLT to Japan time conversion table
| CLT (CLT) | Japan (JST) | Day |
|---|---|---|
| 12:00 AM | 1:00 PM | same day |
| 6:00 AM | 7:00 PM | same day |
| 7:00 AM | 8:00 PM | same day |
| 8:00 AM | 9:00 PM | same day |
| 9:00 AM | 10:00 PM | same day |
| 12:00 PM | 1:00 AM | next day |
| 3:00 PM | 4:00 AM | next day |
| 5:00 PM | 6:00 AM | next day |
| 6:00 PM | 7:00 AM | next day |
| 9:00 PM | 10:00 AM | next day |
Why people convert CLT to Japan time
- Scheduling a call from CLT to Japan: a 10:00 AM start in CLT lands at 11:00 PM in Japan, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +13h gap: CLT and Japan 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 Japan is 10:00 PM in CLT.
- Keeping family and friends in sync: knowing that 8:00 PM in CLT is 9:00 AM in Japan makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM CLT" is unambiguous; "3 PM" across a +13h gap is not.
- With a +13h gap there is no shared 9-to-5 window, so alternate the early start: one week CLT takes the early slot, the next week Japan does.
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 CLT and Japan
With a +13h offset there is no overlap inside a normal 9 AM – 5 PM day. Japan opens at 9:00 AM JST, which is 10:00 PM in CLT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
CLT and Japan have no shared working hours because of the +13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
CLT is 13 hours ahead of Japan (CLT UTC-04:00 → 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
CLT
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Apr 4, 2027
Japan
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:
Frequently Asked Questions
What is the time difference between CLT and Japan?
CLT (CLT, UTC-04:00) is 13 hours ahead of Japan (JST, UTC+09:00). The gap is currently +13h.
How do I convert CLT time to Japan time?
Add +13h to CLT local time. For example, 9:00 AM in CLT is 10:00 PM in Japan.
What time is it in Japan right now?
Japan 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 +13h offset from CLT.
What is the best time to call Japan from CLT?
There is no shared working-hours window because of the +13h gap. The closest option is 1:00 PM in CLT, which is 2:00 AM in Japan.
Which is ahead, CLT or Japan?
CLT is 13 hours ahead of Japan. When it is 12:00 PM in CLT it is 1:00 AM in Japan.
Do CLT and Japan use different time zones?
CLT uses CLT at UTC-04:00, while Japan (Japan) uses JST at UTC+09:00. The IANA identifiers are America/Santiago and Asia/Tokyo.
Does daylight saving time affect the CLT–Japan difference?
Neither zone observes daylight saving time, so the +13h offset between CLT and Japan is fixed all year.
Which other cities share CLT's time zone?
CLT also covers Santiago, Valparaíso, Concepción, Viña del Mar, Antofagasta.
Which countries use CLT, CLT's zone?
CLT is used in Chile.
Is there a day difference between CLT and Japan?
Sometimes. The +13h gap is large enough that 8:00 PM or later in CLT already falls on the next day in Japan.
What is the time difference between CLT and Japan?
Japan is +13h from CLT.
What timezone is CLT in?
CLT operates on its local timezone.
What timezone is Japan in?
Japan 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.
Which cities are in the JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in CLT, what time is it in Japan?
When it is 12:00 AM (midnight) in CLT (CLT), it is +13h later in Japan (JST).
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