No overlap — one side will join outside working hours
KST (Seoul)
ART (Buenos Aires)
00:00
12:00-1dWorking
01:00
13:00-1dWorking
02:00
14:00-1dWorking
03:00
15:00-1dWorking
04:00
16:00-1dWorking
05:00
17:00-1d
06:00
18:00-1d
07:00
19:00-1d
08:00
20:00-1d
09:00Working
21:00-1doff
10:00Working
22:00-1doff
11:00Working
23:00-1doff
12:00Working
00:00off
13:00Working
01:00off
14:00Working
02:00off
15:00Working
03:00off
16:00Working
04:00off
17:00
05:00
18:00
06:00
19:00
07:00
20:00
08:00
21:00
09:00Working
22:00
10:00Working
23:00
11:00Working
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between kst and art?
Korea Standard Time (kst) is UTC+9 and Argentina Time (art) is UTC-3. The difference between them is 12 hours.
Where is kst used?
Korea Standard Time (kst) is used in South Korea and surrounding regions. The IANA timezone identifier is Asia/Seoul.
Where is art used?
Argentina Time (art) is used in Argentina and surrounding regions. The IANA timezone identifier is America/Argentina/Buenos_Aires.
How do I convert kst to art?
Use the interactive converter above. Drag the time slider to any kst time and the art equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
KST (Seoul) is 12 hours ahead of ART (Buenos Aires). When it's noon in KST (Seoul), it's 00:00 in ART (Buenos Aires).
KST (Seoul) runs on Asia/Seoul; ART (Buenos Aires) runs on America/Argentina/Buenos_Aires. Together they are 12 hours apart.
Mutual working hours
There is no business hours overlap between KST (Seoul) and ART (Buenos Aires) during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best call times between these locations
KST (Seoul) and ART (Buenos Aires) have no shared working window. These slots minimize out-of-hours disruption for both sides.
04:00 Seoul / 16:00 Buenos Aires⚡ One side off-hours
⚠️ 5h before working hours in Seoul
09:00 Seoul / 21:00 Buenos Aires⚡ One side off-hours
⚠️ 5h after working hours in Buenos Aires
16:00 Seoul / 04:00 Buenos Aires⚡ One side off-hours
⚠️ 5h before working hours in Buenos Aires
Working hours defined as 09:00–17:00 local time for each location.
Public holidays this year
⚡ Upcoming holidays in both locations, confirm with your contact before booking.
KST (Seoul)7 holidays
Aug 15Liberation Day
Sep 24Chuseok
Sep 25Chuseok
Sep 26Chuseok
Oct 3National Foundation Day
ART (Buenos Aires)6 holidays
Jul 9Independence Day
Aug 17General José de San Martín Memorial Day
Oct 12Day of Respect for Cultural Diversity
Nov 23National Sovereignty Day
Dec 8Immaculate Conception Day
KST (Seoul) and ART (Buenos Aires) — practical scheduling
KST (Seoul) (South Korea) and ART (Buenos Aires) (Argentina) are 12 hours apart — far enough that standard 9–5 schedules do not overlap. Any real-time meeting means someone is joining outside their normal hours.
💡 Practical scheduling guidelines
⚡
A 04:00 meeting in KST (Seoul) means 16:00 in ART (Buenos Aires) (5h before working hours in Seoul).
⚡
A 09:00 meeting in KST (Seoul) means 21:00 in ART (Buenos Aires) (5h after working hours in Buenos Aires).
⚡
A 16:00 meeting in KST (Seoul) means 04:00 in ART (Buenos Aires) (5h before working hours in Buenos Aires).
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am KST (Seoul)".
