San Marcos, TX to Monterrey: time difference
Monterrey is 1 h behind San Marcos, 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.
San Marcos, TX 06:52 6:52 AM Monterrey 05:52 5:52 AM You –:–
06:52 6:52 AM
Central Daylight Time · UTC-5
☀️ 07:36 · 🌙 18:59
05:52 5:52 AM
Central Standard Time · UTC-6
☀️ 06:42 · 🌙 18:12
·
−1 h
Monterrey is 1 h behind San Marcos, TX.
When you, San Marcos, 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
🇺🇸 San Marcos, 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
- Asleep
- Early
- Working hours
- Evening
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Time zones side by side
| Detail | 🇺🇸 San Marcos, TX | 🇲🇽 Monterrey |
|---|---|---|
| Local time | 06:52 | 05:52 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Central Daylight Time | Central Standard Time |
| UTC offset | UTC-5 | UTC-6 |
| Offset from San Marcos, TX | — | −1 h |
| IANA zone | America/Chicago | America/Monterrey |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:36 | 06:42 |
| Sunset | 18:59 | 18:12 |
| Daylight | 11 h 23 min | 11 h 30 min |
| People on this clock | 44,894 | 1,142,994 |
Compare San Marcos, TX with another city
More comparisons with San Marcos, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Marcos, TX and Monterrey: common questions
How far behind San Marcos, TX, is Monterrey?
Monterrey is 1 hour behind San Marcos: UTC−6 against UTC−5.
What time is it in Monterrey when it is 9:00 AM in San Marcos, TX?
When it is 9:00 AM in San Marcos, it is 8:00 AM in Monterrey.
If it is 6:00 PM in San Marcos, TX, what time is it in Monterrey?
At 6:00 PM in San Marcos, clocks in Monterrey show 5:00 PM.
When is a good time to call Monterrey from San Marcos, TX?
Between 10:00 AM and 6:00 PM in San Marcos – that is 9:00 AM to 5:00 PM in Monterrey – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Monterrey compared with San Marcos, TX?
The new day starts in Monterrey later: until 1:00 AM in San Marcos, it is still the previous day there. From 11:00 PM in Monterrey, San Marcos is already on the next day.
Does the time difference between San Marcos, TX, and Monterrey change?
Yes. The clocks change only in San Marcos. From November 1, 2026, Monterrey and San Marcos will have the same time.
