Saint Louis, MO to Monterrey: time difference
Monterrey is 1 h behind Saint Louis, MO. 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.
Saint Louis, MO 21:28 9:28 PM Monterrey 20:28 8:28 PM You –:–
21:28 9:28 PM
Central Daylight Time · UTC-5
☀️ 07:05 · 🌙 18:33
20:28 8:28 PM
Central Standard Time · UTC-6
☀️ 06:38 · 🌙 18:21
·
−1 h
Monterrey is 1 h behind Saint Louis, MO.
When you, Saint Louis, MO 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
🇺🇸 Saint Louis, MO
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
- Both working
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Time zones side by side
| Detail | 🇺🇸 Saint Louis, MO | 🇲🇽 Monterrey |
|---|---|---|
| Local time | 21:28 | 20:28 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Central Daylight Time | Central Standard Time |
| UTC offset | UTC-5 | UTC-6 |
| Offset from Saint Louis, MO | — | −1 h |
| IANA zone | America/Chicago | America/Monterrey |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:05 | 06:38 |
| Sunset | 18:33 | 18:21 |
| Daylight | 11 h 28 min | 11 h 43 min |
| People on this clock | 301,578 | 1,142,994 |
Compare Saint Louis, MO with another city
More comparisons with Saint Louis, MO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Saint Louis, MO and Monterrey: common questions
How many hours behind Saint Louis, MO, is Monterrey?
The clocks in Monterrey are 1 hour behind those in Saint Louis (UTC−6 and UTC−5).
If it is 9:00 AM in Saint Louis, MO, what time is it in Monterrey?
At 9:00 AM in Saint Louis, clocks in Monterrey show 8:00 AM.
What time is it in Monterrey when it is 6:00 PM in Saint Louis, MO?
When it is 6:00 PM in Saint Louis, it is 5:00 PM in Monterrey.
Is there a time when both Saint Louis, MO, and Monterrey are at work?
Yes: from 10:00 AM to 6:00 PM in Saint Louis (9:00 AM to 5:00 PM in Monterrey), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Saint Louis, MO, is it still yesterday in Monterrey?
Before 1:00 AM in Saint Louis, the date in Monterrey has not changed yet. From 11:00 PM in Monterrey, it is already the next day in Saint Louis.
Is the time difference between Saint Louis, MO, and Monterrey the same all year?
No. Only Saint Louis switches to summer time, so the gap changes twice a year. From November 1, 2026, Monterrey and Saint Louis will have the same time.
