ART — Argentina Time
ART is Argentina Time, -03:00, used in South America. In code, use America/Argentina/Buenos_Aires rather than the abbreviation.
Argentina Time · South America
21:26:01
Wednesday, 12 August 2026
- abbreviation denotes
- -03:00
- in force right now
- UTC-03:00 (UTC-03:00)
- use in code
- America/Argentina/Buenos_Aires
- next clock change
- none — fixed offset
Right now this zone is on UTC-03:00, not ART —
they are the same place at different times of year.
Use the IANA name, not the abbreviation
Python
from datetime import datetime
from zoneinfo import ZoneInfo
# right: an IANA zone carries the full history of rule changes
now = datetime.now(ZoneInfo("America/Argentina/Buenos_Aires"))
print(now.isoformat(), now.tzname())
# wrong: an abbreviation is not resolvable, and a hard-coded offset
# silently rots the next time the rules change
# now = datetime.now(timezone(timedelta(hours=...))) # don'tART questions
What does ART stand for?
ART is Argentina Time, -03:00, used in South America. The IANA zone to use in code is America/Argentina/Buenos_Aires.
What time is it in ART right now?
Argentina Time: 21:26 on Wednesday (UTC-03:00).
Which IANA timezone should I use instead of ART?
America/Argentina/Buenos_Aires for Argentina Time. Date libraries cannot resolve bare abbreviations, and an abbreviation carries no daylight-saving history, so a stored offset silently rots when a government changes the rules.
Why does my computer show UTC-03:00 instead of ART?
Because America/Argentina/Buenos_Aires is currently on UTC-03:00 (UTC-03:00), its daylight-saving variant. ART (-03:00) applies during the other half of the year. Both names refer to the same place, one hour apart.