Buenos Aires to Port Arthur, TX: time difference
Port Arthur, TX 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 09:55 9:55 AM Port Arthur, TX 07:55 7:55 AM You –:–
09:55 9:55 AM
Argentina Standard Time · UTC-3
☀️ 06:07 · 🌙 19:11
07:55 7:55 AM
Central Daylight Time · UTC-5
☀️ 07:21 · 🌙 18:42
·
−2 h
Port Arthur, TX is 2 h behind Buenos Aires.
When you, Buenos Aires and Port Arthur, TX 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
🇺🇸 Port Arthur, TX
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 | 🇺🇸 Port Arthur, TX |
|---|---|---|
| Local time | 09:55 | 07:55 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 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 | 06:07 | 07:21 |
| Sunset | 19:11 | 18:42 |
| Daylight | 13 h 4 min | 11 h 21 min |
| People on this clock | 2,891,082 | 54,135 |
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 Port Arthur, TX: common questions
How many hours behind Buenos Aires is Port Arthur, TX?
The clocks in Port Arthur are 2 hours behind those in Buenos Aires (UTC−5 and UTC−3).
What time is it in Port Arthur, TX, when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 7:00 AM in Port Arthur.
If it is 6:00 PM in Buenos Aires, what time is it in Port Arthur, TX?
At 6:00 PM in Buenos Aires, clocks in Port Arthur show 4:00 PM.
Is there a time when both Buenos Aires and Port Arthur, TX, are at work?
Yes: from 11:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 4:00 PM in Port Arthur), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Buenos Aires is it still yesterday in Port Arthur, TX?
Before 2:00 AM in Buenos Aires, the date in Port Arthur has not changed yet. From 10:00 PM in Port Arthur, it is already the next day in Buenos Aires.
Does the time gap between Buenos Aires and Port Arthur, TX, change during the year?
Yes – daylight saving time is used in Port Arthur but not in Buenos Aires. From November 1, 2026, Port Arthur will be 3 hours behind Buenos Aires.
