Offset
The time difference between Iran Standard Time and Argentina Time is 6.5 hours.
Iran Standard Time (IRST) is ahead of Argentina Time (ART).
IRST: UTC+3:30
ART: UTC-3
Neither Iran Standard Time nor Argentina Time is currently observing daylight saving time.
When to schedule
Business-hours overlap: 4 PM–5 PM in Iran Standard Time (9 AM–10 AM in Argentina Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 4:00 PM Iran Standard Time (9:30 AM Argentina Time).
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Argentina
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Day of Remembrance for Truth and JusticeTue, Mar 24
- Day of the Veterans and Fallen of the Malvinas WarThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- May RevolutionMon, May 25
- Anniversary of the Passing of General Martín Miguel de GüemesMon, Jun 15
- General Manuel Belgrano Memorial DaySat, Jun 20
- Independence DayThu, Jul 9
- General José de San Martín Memorial DayMon, Aug 17
- Day of Respect for Cultural DiversityMon, Oct 12
- National Sovereignty DayMon, Nov 23
- Immaculate Conception DayTue, Dec 8
- Christmas DayFri, Dec 25
About these zones
Iran Standard Time is also known as IRST. To call Iran, dial +98.
Argentina Time is also known as ART. To call Argentina, dial +54.
Argentina Time is approximately 8,550 miles west of Iran Standard Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| IRST | ART | Day |
|---|---|---|
| 12:00 am | 5:30 pm | -1 day |
| 1:00 am | 6:30 pm | -1 day |
| 2:00 am | 7:30 pm | -1 day |
| 3:00 am | 8:30 pm | -1 day |
| 4:00 am | 9:30 pm | -1 day |
| 5:00 am | 10:30 pm | -1 day |
| 6:00 am | 11:30 pm | -1 day |
| 7:00 am | 12:30 am | Same day |
| 8:00 am | 1:30 am | Same day |
| 9:00 am | 2:30 am | Same day |
| 10:00 am | 3:30 am | Same day |
| 11:00 am | 4:30 am | Same day |
| 12:00 pm | 5:30 am | Same day |
| 1:00 pm | 6:30 am | Same day |
| 2:00 pm | 7:30 am | Same day |
| 3:00 pm | 8:30 am | Same day |
| 4:00 pm | 9:30 am | Same day |
| 5:00 pm | 10:30 am | Same day |
| 6:00 pm | 11:30 am | Same day |
| 7:00 pm | 12:30 pm | Same day |
| 8:00 pm | 1:30 pm | Same day |
| 9:00 pm | 2:30 pm | Same day |
| 10:00 pm | 3:30 pm | Same day |
| 11:00 pm | 4:30 pm | Same day |
Daylight saving time
Neither Iran Standard Time nor Argentina Time observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 4:50 AM
- Sunset
- 7:18 PM
- Day length
- 14h 28m
- Sunrise
- 7:55 AM
- Sunset
- 5:51 PM
- Day length
- 9h 56m
Daylight overlap: 4h 53m — 2:25 PM–7:18 PM in Iran Standard Time (7:55 AM–12:48 PM in Argentina Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Argentina Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Iran Standard Time
- IKA
- THR
- MHD
- IFN
- PYK
- TBZ
Airports in Argentina Time
- AEP
- EZE
Related conversions
Common conversions
- What is 9:00 am IRST in ART?
- 9:00 am IRST is 2:30 am ART.
- What is 12:00 pm IRST in ART?
- 12:00 pm IRST is 5:30 am ART.
- What is 12:30 pm IRST in ART?
- 12:30 pm IRST is 6:00 am ART.
- What is 2:00 pm IRST in ART?
- 2:00 pm IRST is 7:30 am ART.
- What is 5:00 pm IRST in ART?
- 5:00 pm IRST is 10:30 am ART.
- What is 11:30 pm IRST in ART?
- 11:30 pm IRST is 5:00 pm ART.