Monterrey to San Antonio, TX: time difference
San Antonio, TX is 1 h ahead of Monterrey. 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.
Monterrey 03:43 3:43 AM San Antonio, TX 04:43 4:43 AM You –:–
03:43 3:43 AM
Central Standard Time · UTC-6
☀️ 06:38 · 🌙 18:20
04:43 4:43 AM
Central Daylight Time · UTC-5
☀️ 07:33 · 🌙 19:10
·
+1 h
San Antonio, TX is 1 h ahead of Monterrey.
When you, Monterrey and San Antonio, 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
🇲🇽 Monterrey
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
🇺🇸 San Antonio, TX
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
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Time zones side by side
| Detail | 🇲🇽 Monterrey | 🇺🇸 San Antonio, TX |
|---|---|---|
| Local time | 03:43 | 04:43 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Central Standard Time | Central Daylight Time |
| UTC offset | UTC-6 | UTC-5 |
| Offset from Monterrey | — | +1 h |
| IANA zone | America/Monterrey | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 06:38 | 07:33 |
| Sunset | 18:20 | 19:10 |
| Daylight | 11 h 42 min | 11 h 37 min |
| People on this clock | 1,142,994 | 1,434,625 |
Compare Monterrey with another city
More comparisons with Monterrey: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Monterrey and San Antonio, TX: common questions
How far ahead of Monterrey is San Antonio, TX?
San Antonio is 1 hour ahead of Monterrey: UTC−5 against UTC−6.
What time is it in San Antonio, TX, when it is 9:00 AM in Monterrey?
When it is 9:00 AM in Monterrey, it is 10:00 AM in San Antonio.
If it is 6:00 PM in Monterrey, what time is it in San Antonio, TX?
At 6:00 PM in Monterrey, clocks in San Antonio show 7:00 PM.
When do working hours in Monterrey and in San Antonio, TX, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Monterrey, which is 10:00 AM to 6:00 PM in San Antonio.
When is it already the next day in San Antonio, TX?
From 11:00 PM in Monterrey it is already the next day in San Antonio. The other way round, until 1:00 AM in San Antonio it is still the previous day in Monterrey.
Does the time difference between Monterrey and San Antonio, TX, change?
Yes. The clocks change only in San Antonio. From November 1, 2026, San Antonio and Monterrey will have the same time.
