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