Port Arthur, TX to Monterrey: time difference
Monterrey is 1 h behind Port Arthur, TX. 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.
Port Arthur, TX 07:54 7:54 AM Monterrey 06:54 6:54 AM You –:–
07:54 7:54 AM
Central Daylight Time · UTC-5
☀️ 07:21 · 🌙 18:42
06:54 6:54 AM
Central Standard Time · UTC-6
☀️ 06:43 · 🌙 18:11
·
−1 h
Monterrey is 1 h behind Port Arthur, TX.
When you, Port Arthur, TX and Monterrey 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
🇲🇽 Monterrey
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 22 10 PM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Port Arthur, TX | 🇲🇽 Monterrey |
|---|---|---|
| Local time | 07:54 | 06:54 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Central Daylight Time | Central Standard Time |
| UTC offset | UTC-5 | UTC-6 |
| Offset from Port Arthur, TX | — | −1 h |
| IANA zone | America/Chicago | America/Monterrey |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:21 | 06:43 |
| Sunset | 18:42 | 18:11 |
| Daylight | 11 h 21 min | 11 h 29 min |
| People on this clock | 54,135 | 1,142,994 |
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 Monterrey: common questions
How far behind Port Arthur, TX, is Monterrey?
Monterrey is 1 hour behind Port Arthur: UTC−6 against UTC−5.
If it is 9:00 AM in Port Arthur, TX, what time is it in Monterrey?
At 9:00 AM in Port Arthur, clocks in Monterrey show 8:00 AM.
If it is 6:00 PM in Port Arthur, TX, what time is it in Monterrey?
At 6:00 PM in Port Arthur, clocks in Monterrey show 5:00 PM.
When do working hours in Port Arthur, TX, and in Monterrey overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Port Arthur, which is 9:00 AM to 5:00 PM in Monterrey.
When does the date change in Monterrey compared with Port Arthur, TX?
The new day starts in Monterrey later: until 1:00 AM in Port Arthur, it is still the previous day there. From 11:00 PM in Monterrey, Port Arthur is already on the next day.
Does the time gap between Port Arthur, TX, and Monterrey change during the year?
Yes – daylight saving time is used in Port Arthur but not in Monterrey. From November 1, 2026, Monterrey and Port Arthur will have the same time.
