Shanghai to Buenos Aires
-11hShanghai
CSTSOURCEBuenos Aires
ARTGreen rows indicate typical business hours (9 AM - 5 PM)
CST and ART on the World Map
The map below highlights the CST (China Standard Time) and ART (Argentina Time) timezone regions across the globe.
CST – China Standard Time
UTC+08:00China Standard Time (CST) covers all of mainland China, 8 hours ahead of UTC.
- •China uses a single time zone despite spanning 5 geographical zones.
- •In Xinjiang (western China), sunset can be as late as midnight in summer.
- •China abolished daylight saving time in 1991.
- •The Shanghai Stock Exchange operates on CST/Beijing Time.
ART – Argentina Time
UTC-03:00Argentina Time (ART) is the standard time for Argentina, 3 hours behind UTC.
- •Argentina does not observe daylight saving time.
- •Buenos Aires is one of the most visited cities in South America.
- •ART is the same offset as BRT (UTC-03:00).
About Shanghai
WikipediaShanghai operates on China Standard Time (CST), UTC+8. As China's economic powerhouse and home to the SSE, Shanghai time is essential for global investors.
The Maglev train from Shanghai airport reaches 431 km/h, the fastest commercial train in the world.
About Buenos Aires
WikipediaBuenos Aires operates on Argentina Time (ART), UTC-3. As South America's most European city, Buenos Aires coordinates with Brazilian markets in the same timezone.
The Teatro Colón is considered one of the best opera houses in the world for acoustics.
Understanding the -11h Gap: Shanghai vs Buenos Aires
Shanghai runs on China Standard Time (CST) at UTC+08:00. Buenos Aires runs on Argentina Standard Time (ART) at UTC-03:00. That puts Shanghai 11 hours behind Buenos Aires — a difference of -11h at the current offsets.
In practice, when it is 9:00 AM in Shanghai it is 10:00 PM in Buenos Aires on the previous day. Midnight in Shanghai is 1:00 PM in Buenos Aires. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Shanghai to Buenos Aires time conversion table
| Shanghai (CST) | Buenos Aires (ART) | Day |
|---|---|---|
| 12:00 AM | 1:00 PM | previous day |
| 6:00 AM | 7:00 PM | previous day |
| 7:00 AM | 8:00 PM | previous day |
| 8:00 AM | 9:00 PM | previous day |
| 9:00 AM | 10:00 PM | previous day |
| 12:00 PM | 1:00 AM | same day |
| 3:00 PM | 4:00 AM | same day |
| 5:00 PM | 6:00 AM | same day |
| 6:00 PM | 7:00 AM | same day |
| 9:00 PM | 10:00 AM | same day |
Why people convert Shanghai to Buenos Aires time
- Scheduling a call from Shanghai to Buenos Aires: a 10:00 AM start in Shanghai lands at 11:00 PM in Buenos Aires the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h gap: Shanghai and Buenos Aires 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 Buenos Aires is 10:00 PM in Shanghai.
- Coordinating a Shanghai-based team with Buenos Aires 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 CST" is unambiguous; "3 PM" across a -11h gap is not.
- With a -11h gap there is no shared 9-to-5 window, so alternate the early start: one week Shanghai takes the early slot, the next week Buenos Aires does.
About CST (China Standard Time)
China Standard Time (CST, also known as Beijing Time) is used across all of mainland China despite the country spanning five geographical time zones. This single-timezone policy was adopted in 1949. China does not observe daylight saving time. CST is shared with Hong Kong (HKT), Macau, Taiwan, Singapore, Malaysia, and the Philippines, making UTC+08:00 one of the most used offsets in the world.
About ART (Argentina Time)
Argentina Time (ART) is the time zone used throughout Argentina. Argentina does not observe daylight saving time. ART shares the same offset as Brasilia Time (BRT) and Uruguay's UYT.
Best time to call between Shanghai and Buenos Aires
With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. Buenos Aires opens at 9:00 AM ART, which is 10:00 PM in Shanghai, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Shanghai and Buenos Aires have no shared working hours because of the -11h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Shanghai is 11 hours behind Buenos Aires (CST UTC+08:00 → ART UTC-03:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
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 Shanghai and Buenos Aires?
Shanghai (CST, UTC+08:00) is 11 hours behind Buenos Aires (ART, UTC-03:00). The gap is currently -11h.
How do I convert Shanghai time to Buenos Aires time?
Add -11h to Shanghai local time. For example, 9:00 AM in Shanghai is 10:00 PM in Buenos Aires (previous day).
What time is it in Buenos Aires right now?
Buenos Aires uses ART at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -11h offset from Shanghai.
What is the best time to call Buenos Aires from Shanghai?
There is no shared working-hours window because of the -11h gap. The closest option is 1:00 PM in Shanghai, which is 2:00 AM in Buenos Aires.
Which is behind, Shanghai or Buenos Aires?
Shanghai is 11 hours behind Buenos Aires. When it is 12:00 PM in Shanghai it is 1:00 AM in Buenos Aires.
Do Shanghai and Buenos Aires use different time zones?
Shanghai (China) uses CST at UTC+08:00, while Buenos Aires (Argentina) uses ART at UTC-03:00. The IANA identifiers are Asia/Shanghai and America/Buenos_Aires.
Does daylight saving time affect the Shanghai–Buenos Aires difference?
Neither zone observes daylight saving time, so the -11h offset between Shanghai and Buenos Aires is fixed all year.
Which other cities share Shanghai's time zone?
CST also covers Shanghai, Beijing, Shenzhen, Guangzhou, Chengdu, Hong Kong, Taipei, Wuhan and 2 more.
Which countries use CST, Shanghai's zone?
CST is used in China, Hong Kong, Macau, Taiwan.
Is there a day difference between Shanghai and Buenos Aires?
Not normally. The -11h gap only pushes the date over the previous day.
What is the time difference between Shanghai and Buenos Aires?
Buenos Aires is -11h from Shanghai.
What timezone is Shanghai in?
Shanghai operates on China Standard Time (CST), UTC+8. As China's economic powerhouse and home to the SSE, Shanghai time is essential for global investors.
What timezone is Buenos Aires in?
Buenos Aires operates on Argentina Time (ART), UTC-3. As South America's most European city, Buenos Aires coordinates with Brazilian markets in the same timezone.
What are the business hours in Shanghai?
Standard business hours in Shanghai are 9:00 AM - 6:00 PM CST.
What are the business hours in Buenos Aires?
Standard business hours in Buenos Aires are 9:00 AM - 6:00 PM ART.
What is the best time to schedule a call between Shanghai and Buenos Aires?
The best overlap for a call is when both cities are in business hours. Shanghai works 9:00 AM - 6:00 PM CST and Buenos Aires works 9:00 AM - 6:00 PM ART (-11h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Shanghai and Buenos Aires?
Shanghai uses CNY (¥) while Buenos Aires uses ARS ($). Check current exchange rates when planning travel or business between these cities.
How do Shanghai and Buenos Aires compare in size?
Shanghai has a population of approximately 24.9 million (metro: 28.5 million), while Buenos Aires has approximately 3 million (metro: 15.4 million).
What are the major landmarks in Shanghai and Buenos Aires?
Shanghai is known for The Bund, Oriental Pearl Tower, Yu Garden. Buenos Aires is famous for Casa Rosada, Teatro Colón, La Boca.
Do Shanghai and Buenos Aires have stock exchanges?
Yes. Shanghai has the SSE (Shanghai Stock Exchange) and Buenos Aires has the BCBA (Buenos Aires Stock Exchange). The -11h time difference affects trading hour overlaps between these exchanges.
Which countries use CST (China Standard Time)?
CST is used in China, Hong Kong, Macau, Taiwan.
Does CST observe daylight saving time?
No, CST does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about CST?
China uses a single time zone despite spanning 5 geographical zones. In Xinjiang (western China), sunset can be as late as midnight in summer.
Which cities are in the ART timezone?
Major cities in the ART timezone include Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán.
What is the UTC offset for ART?
Argentina Time (ART) is at UTC-03:00.
What should I know about the ART timezone?
Argentina does not observe daylight saving time. Buenos Aires is one of the most visited cities in South America.
When is it midnight in Shanghai, what time is it in Buenos Aires?
When it is 12:00 AM (midnight) in Shanghai (CST), it is -11h later in Buenos Aires (ART).
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