Buenos Aires to St. Louis, MO: time difference
St. Louis, MO is 2 h behind Buenos Aires. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Buenos Aires 21:06 9:06 PM St. Louis, MO 19:06 7:06 PM You –:–
21:06 9:06 PM
Argentina Standard Time · UTC-3
☀️ 06:05 · 🌙 19:13
19:06 7:06 PM
Central Daylight Time · UTC-5
☀️ 07:17 · 🌙 18:16
·
−2 h
St. Louis, MO is 2 h behind Buenos Aires.
When you, Buenos Aires and St. Louis, MO are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇦🇷 Buenos Aires
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇺🇸 St. Louis, MO
22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇺🇸 St. Louis, MO |
|---|---|---|
| Local time | 21:06 | 19:06 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 2026 |
| Time zone | Argentina Standard Time | Central Daylight Time |
| UTC offset | UTC-3 | UTC-5 |
| Offset from Buenos Aires | — | −2 h |
| IANA zone | America/Argentina/Buenos Aires | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 06:05 | 07:17 |
| Sunset | 19:13 | 18:16 |
| Daylight | 13 h 8 min | 10 h 59 min |
| People on this clock | 2,891,082 | 301,578 |
Compare Buenos Aires with another city
More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Buenos Aires and St. Louis, MO: common questions
How far behind Buenos Aires is St. Louis, MO?
St. Louis is 2 hours behind Buenos Aires: UTC−5 against UTC−3.
What time is it in St. Louis, MO, at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in St. Louis it is 7:00 AM at that moment.
What time is it in St. Louis, MO, at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in St. Louis it is 4:00 PM at that moment.
When do working hours in Buenos Aires and in St. Louis, MO, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Buenos Aires, which is 9:00 AM to 4:00 PM in St. Louis.
When is it still the previous day in St. Louis, MO?
Until 2:00 AM in Buenos Aires it is still the previous day in St. Louis. The other way round, from 10:00 PM in St. Louis it is already the next day in Buenos Aires.
Does the time difference between Buenos Aires and St. Louis, MO, change?
Yes. The clocks change only in St. Louis. From November 1, 2026, St. Louis will be 3 hours behind Buenos Aires.
