Buenos Aires to Tehran
+6h 30mBuenos Aires
ARTSOURCETehran
IRSTGreen rows indicate typical business hours (9 AM - 5 PM)
ART and IRST on the World Map
The map below highlights the ART (Argentina Time) and IRST (Iran Standard Time) timezone regions across the globe.
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).
IRST – Iran Standard Time
UTC+03:30Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.
- •IRST is one of only a few time zones with a 30-minute offset.
- •Iran observes daylight saving time, switching to IRDT (UTC+04:30).
- •Tehran has a metropolitan population of over 16 million.
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.
About Tehran
WikipediaTehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.
Iran Standard Time (IRST) is one of few timezones with a 30-minute offset (UTC+3:30).
Buenos Aires to Tehran Time Difference – Complete Guide
Buenos Aires runs on Argentina Standard Time (ART) at UTC-03:00. Tehran runs on Iran Standard Time (IRST) at UTC+03:30. That puts Buenos Aires 6 hours 30 minutes ahead of Tehran — a difference of +6h 30m at the current offsets.
In practice, when it is 9:00 AM in Buenos Aires it is 3:30 PM in Tehran. Midnight in Buenos Aires is 6:30 AM in Tehran. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Buenos Aires to Tehran time conversion table
| Buenos Aires (ART) | Tehran (IRST) | Day |
|---|---|---|
| 12:00 AM | 6:30 AM | same day |
| 6:00 AM | 12:30 PM | same day |
| 7:00 AM | 1:30 PM | same day |
| 8:00 AM | 2:30 PM | same day |
| 9:00 AM | 3:30 PM | same day |
| 12:00 PM | 6:30 PM | same day |
| 3:00 PM | 9:30 PM | same day |
| 5:00 PM | 11:30 PM | same day |
| 6:00 PM | 12:30 AM | next day |
| 9:00 PM | 3:30 AM | next day |
Why people convert Buenos Aires to Tehran time
- Scheduling a call from Buenos Aires to Tehran: a 10:00 AM start in Buenos Aires lands at 4:30 PM in Tehran, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Buenos Aires and Tehran are inside the 9-to-5 working day between 9:00 AM and 10:30 AM ART time (3:30 PM–5:00 PM IRST). That is roughly 1 hours 30 minutes of usable overlap.
- Watching a live event or market open: Buenos Aires viewers need 3:30 PM in Tehran to catch a 9:00 AM start there, and 5:30 PM if the event is anchored to Buenos Aires.
- Always state the zone abbreviation, not just the hour. "3:00 PM ART" is unambiguous; "3 PM" across a +6h 30m gap is not.
- Block 9:00 AM–10:30 AM ART as the recurring meeting window if you work primarily from Buenos Aires and need Tehran colleagues present.
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.
About IRST (Iran Standard Time)
Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.
Best time to call between Buenos Aires and Tehran
Both Buenos Aires and Tehran sit inside the 9 AM – 5 PM working day between 9:00 AM–10:30 AM ART, which is 3:30 PM–5:00 PM IRST. That gives roughly 1 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Buenos Aires and Tehran overlap for only 90 minutes (9:00 AM–10:30 AM ART), so meetings have to be booked precisely.
Buenos Aires is 6 hours 30 minutes ahead of Tehran (ART UTC-03:00 → IRST UTC+03:30). The shared working window is 9:00 AM–10:30 AM ART. 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 Buenos Aires and Tehran?
Buenos Aires (ART, UTC-03:00) is 6 hours 30 minutes ahead of Tehran (IRST, UTC+03:30). The gap is currently +6h 30m.
How do I convert Buenos Aires time to Tehran time?
Add +6h 30m to Buenos Aires local time. For example, 9:00 AM in Buenos Aires is 3:30 PM in Tehran.
What time is it in Tehran right now?
Tehran uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +6h 30m offset from Buenos Aires.
What is the best time to call Tehran from Buenos Aires?
Call between 9:00 AM and 10:30 AM ART — that maps to 3:30 PM–5:00 PM IRST and keeps both parties inside the working day.
Which is ahead, Buenos Aires or Tehran?
Buenos Aires is 6 hours 30 minutes ahead of Tehran. When it is 12:00 PM in Buenos Aires it is 6:30 PM in Tehran.
Do Buenos Aires and Tehran use different time zones?
Buenos Aires (Argentina) uses ART at UTC-03:00, while Tehran (Iran) uses IRST at UTC+03:30. The IANA identifiers are America/Buenos_Aires and Asia/Tehran.
Does daylight saving time affect the Buenos Aires–Tehran difference?
Neither zone observes daylight saving time, so the +6h 30m offset between Buenos Aires and Tehran is fixed all year.
Which other cities share Buenos Aires's time zone?
ART also covers Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán.
Which countries use ART, Buenos Aires's zone?
ART is used in Argentina.
Is there a day difference between Buenos Aires and Tehran?
Not normally. The +6h 30m gap only pushes the date over for late-evening times.
What is the time difference between Buenos Aires and Tehran?
Tehran is +6h 30m from Buenos Aires.
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 timezone is Tehran in?
Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.
What are the business hours in Buenos Aires?
Standard business hours in Buenos Aires are 9:00 AM - 6:00 PM ART.
What are the business hours in Tehran?
Standard business hours in Tehran are 8:00 AM - 4:00 PM IRST.
What is the best time to schedule a call between Buenos Aires and Tehran?
The best overlap for a call is when both cities are in business hours. Buenos Aires works 9:00 AM - 6:00 PM ART and Tehran works 8:00 AM - 4:00 PM IRST (+6h 30m difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Buenos Aires and Tehran?
Buenos Aires uses ARS ($) while Tehran uses IRR (﷼). Check current exchange rates when planning travel or business between these cities.
How do Buenos Aires and Tehran compare in size?
Buenos Aires has a population of approximately 3 million (metro: 15.4 million), while Tehran has approximately 9.4 million (metro: 16.8 million).
What are the major landmarks in Buenos Aires and Tehran?
Buenos Aires is known for Casa Rosada, Teatro Colón, La Boca. Tehran is famous for Azadi Tower, Golestan Palace, Grand Bazaar.
Do Buenos Aires and Tehran have stock exchanges?
Yes. Buenos Aires has the BCBA (Buenos Aires Stock Exchange) and Tehran has the TSE (Tehran Stock Exchange). The +6h 30m time difference affects trading hour overlaps between these exchanges.
Which countries use ART (Argentina Time)?
ART is used in Argentina.
Does ART observe daylight saving time?
No, ART does not observe daylight saving time and remains at UTC-03:00 year-round.
What are some interesting facts about ART?
Argentina does not observe daylight saving time. Buenos Aires is one of the most visited cities in South America.
Which cities are in the IRST timezone?
Major cities in the IRST timezone include Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
What is the UTC offset for IRST?
Iran Standard Time (IRST) is at UTC+03:30. During daylight saving time, it shifts to IRDT.
What should I know about the IRST timezone?
IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).
When is it midnight in Buenos Aires, what time is it in Tehran?
When it is 12:00 AM (midnight) in Buenos Aires (ART), it is +6h 30m later in Tehran (IRST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Buenos Aires time conversions
- buenos aires to art
- buenos aires to argentina
- buenos aires to new york
- buenos aires to los angeles
- buenos aires to chicago
- buenos aires to denver
- buenos aires to toronto
- buenos aires to vancouver
- buenos aires to mexico city
- buenos aires to sao paulo
- buenos aires to bogota
- buenos aires to lima
- buenos aires to santiago
- buenos aires to anchorage
- buenos aires to london
- buenos aires to dubai
- buenos aires to tokyo
- buenos aires to singapore
- buenos aires to sydney
- buenos aires to paris
- buenos aires to delhi
- buenos aires to mumbai
- buenos aires to berlin
- buenos aires to hong kong
- buenos aires to kathmandu
- new york to buenos aires
- london to buenos aires
- dubai to buenos aires
- tokyo to buenos aires
- singapore to buenos aires
- sydney to buenos aires
- los angeles to buenos aires
- paris to buenos aires
- delhi to buenos aires
- mumbai to buenos aires
- berlin to buenos aires
See every conversion from Buenos Aires →·See every conversion from Tehran →