Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

IRST to Argentina

-6h 30m

IRST

IRSTSOURCE

UTC+03:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Argentina

ART

UTC-03:00

HH05

MM30

05:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

IRST

Argentina

12:00 AM

5:30 PM-1

2:00 AM

7:30 PM-1

4:00 AM

9:30 PM-1

6:00 AM

11:30 PM-1

8:00 AM

1:30 AM

10:00 AM

3:30 AM

12:00 PM

5:30 AM

2:00 PM

7:30 AM

4:00 PM

9:30 AM

6:00 PM

11:30 AM

8:00 PM

1:30 PM

10:00 PM

3:30 PM

Green rows indicate typical business hours (9 AM - 5 PM)

IRST and ART on the World Map

The map below highlights the IRST (Iran Standard Time) and ART (Argentina Time) timezone regions across the globe.

IRST Zone

→

ART Zone

Explore all world timezones interactively →

IRST – Iran Standard Time

UTC+03:30

Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.

Countries in IRST

Iran

Major Cities in IRST

TehranIsfahanMashhadTabrizShirazKaraj

Key Facts about IRST

•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.

Daylight Saving:Yes – switches to IRDT

Learn more about IRST on Wikipedia

ART – Argentina Time

UTC-03:00

Argentina Time (ART) is the standard time for Argentina, 3 hours behind UTC.

Countries in ART

Argentina

Major Cities in ART

Buenos AiresCórdobaRosarioMendozaLa PlataTucumán

Key Facts about ART

•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).

Daylight Saving:No – UTC-03:00 year-round

Learn more about ART on Wikipedia

Everything You Need to Know About IRST and Argentina Time

IRST runs on Iran Standard Time (IRST) at UTC+03:30. Argentina runs on Argentina Standard Time (ART) at UTC-03:00. That puts IRST 6 hours 30 minutes behind Argentina — a difference of -6h 30m at the current offsets.

In practice, when it is 9:00 AM in IRST it is 2:30 AM in Argentina. Midnight in IRST is 5:30 PM in Argentina. Neither zone observes daylight saving time, so the offset between them stays constant all year.

IRST to Argentina time conversion table

IRST (IRST)	Argentina (ART)	Day
12:00 AM	5:30 PM	previous day
6:00 AM	11:30 PM	previous 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
12:00 PM	5:30 AM	same day
3:00 PM	8:30 AM	same day
5:00 PM	10:30 AM	same day
6:00 PM	11:30 AM	same day
9:00 PM	2:30 PM	same day

Why people convert IRST to Argentina time

Scheduling a call from IRST to Argentina: a 10:00 AM start in IRST lands at 3:30 AM in Argentina, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both IRST and Argentina are inside the 9-to-5 working day between 3:30 PM and 5:00 PM IRST time (9:00 AM–10:30 AM ART). That is roughly 1 hours 30 minutes of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in IRST is 1:30 PM in Argentina makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM IRST" is unambiguous; "3 PM" across a -6h 30m gap is not.
Block 3:30 PM–5:00 PM IRST as the recurring meeting window if you work primarily from IRST and need Argentina colleagues present.

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.

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 IRST and Argentina

Both IRST and Argentina sit inside the 9 AM – 5 PM working day between 3:30 PM–5:00 PM IRST, which is 9:00 AM–10:30 AM ART. That gives roughly 1 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

IRST and Argentina overlap for only 90 minutes (3:30 PM–5:00 PM IRST), so meetings have to be booked precisely.

IRST is 6 hours 30 minutes behind Argentina (IRST UTC+03:30 → ART UTC-03:00). The shared working window is 3:30 PM–5:00 PM IRST. 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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between IRST and Argentina?

IRST (IRST, UTC+03:30) is 6 hours 30 minutes behind Argentina (ART, UTC-03:00). The gap is currently -6h 30m.

How do I convert IRST time to Argentina time?

Add -6h 30m to IRST local time. For example, 9:00 AM in IRST is 2:30 AM in Argentina.

What time is it in Argentina right now?

Argentina 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 -6h 30m offset from IRST.