Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between mst and art?
Mountain Standard Time (mst) is UTC-6 and Argentina Time (art) is UTC-3. The difference between them is 3 hours.
Where is mst used?
Mountain Standard Time (mst) is used in USA and surrounding regions. The IANA timezone identifier is America/Denver.
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 mst to art?
Use the interactive converter above. Drag the time slider to any mst time and the art equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
MST (Denver) to ART (Buenos Aires) — exact time difference
MST (Denver) is 3 hours behind ART (Buenos Aires). At noon in MST (Denver), your contact in ART (Buenos Aires) sees 15:00.
MST (Denver) observes America/Denver and ART (Buenos Aires) observes America/Argentina/Buenos_Aires — a 3 hours gap between them.
Working hours overlap
MST (Denver) and ART (Buenos Aires) share 5 hours of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.
00:0006:0012:0018:0024:00
MST (Denver)
ART (Buenos Aires)
Overlap (5h)
Meeting time recommendations
MST (Denver) and ART (Buenos Aires) share 5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.
09:00 Denver / 12:00 Buenos Aires✓ Both working
10:00 Denver / 13:00 Buenos Aires✓ Both working
11:00 Denver / 14:00 Buenos Aires✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Public holidays for both locations
⚡ Holiday alerts for both locations, double-check schedules before confirming.
MST (Denver)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
ART (Buenos Aires)7 holidays
Jun 20General Manuel Belgrano Memorial DaySOON
Jul 9Independence Day
Aug 17General José de San Martín Memorial Day
Oct 12Day of Respect for Cultural Diversity
Nov 23National Sovereignty Day
Scheduling between MST (Denver) and ART (Buenos Aires)
Teams in MST (Denver) (USA) and ART (Buenos Aires) (Argentina) face a 3-hour time difference day to day. A 5-hour shared business hours window makes real-time meetings feasible for both sides within their normal working day.
💡 Scheduling tips for these locations
✅
Schedule at 09:00–10:00 (MST (Denver)) for a 12:00–13:00 slot in ART (Buenos Aires) — the sweet spot where both teams are working.
✅
Schedule at 10:00–11:00 (MST (Denver)) for a 13:00–14:00 slot in ART (Buenos Aires) — the sweet spot where both teams are working.
✅
Schedule at 11:00–12:00 (MST (Denver)) for a 14:00–15:00 slot in ART (Buenos Aires) — the sweet spot where both teams are working.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any MST (Denver) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
