Port Arthur, TX to Rio de Janeiro: time difference
Rio de Janeiro is 2 h ahead of Port Arthur, TX. Live clocks for both, the working hours they share, and how each one sits against your own time.
+2 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Port Arthur, TX 07:55 7:55 AM Rio de Janeiro 09:55 9:55 AM You –:–
07:55 7:55 AM
Central Daylight Time · UTC-5
☀️ 07:21 · 🌙 18:42
09:55 9:55 AM
Brasilia Standard Time · UTC-3
☀️ 05:18 · 🌙 17:59
·
+2 h
Rio de Janeiro is 2 h ahead of Port Arthur, TX.
When you, Port Arthur, TX and Rio de Janeiro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Port Arthur, TX
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
🇧🇷 Rio de Janeiro
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 0 12 AM 1 1 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Port Arthur, TX | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 07:55 | 09:55 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Central Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Port Arthur, TX | — | +2 h |
| IANA zone | America/Chicago | America/Sao Paulo |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:21 | 05:18 |
| Sunset | 18:42 | 17:59 |
| Daylight | 11 h 21 min | 12 h 41 min |
| People on this clock | 54,135 | 6,211,223 |
Compare Port Arthur, TX with another city
More comparisons with Port Arthur, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Port Arthur, TX and Rio de Janeiro: common questions
How far ahead of Port Arthur, TX, is Rio de Janeiro?
Rio de Janeiro is 2 hours ahead of Port Arthur: UTC−3 against UTC−5.
If it is 9:00 AM in Port Arthur, TX, what time is it in Rio de Janeiro?
At 9:00 AM in Port Arthur, clocks in Rio de Janeiro show 11:00 AM.
If it is 6:00 PM in Port Arthur, TX, what time is it in Rio de Janeiro?
At 6:00 PM in Port Arthur, clocks in Rio de Janeiro show 8:00 PM.
Is there a time when both Port Arthur, TX, and Rio de Janeiro are at work?
Yes: from 9:00 AM to 4:00 PM in Port Arthur (11:00 AM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Rio de Janeiro compared with Port Arthur, TX?
The new day starts in Rio de Janeiro earlier: at 10:00 PM in Port Arthur it is already midnight there. Until 2:00 AM in Rio de Janeiro, Port Arthur is still on the previous day.
Is the time difference between Port Arthur, TX, and Rio de Janeiro the same all year?
No. Only Port Arthur switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 3 hours ahead of Port Arthur.
