St. Louis, MO to Monterrey: time difference
Monterrey is 1 h behind St. 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.
St. Louis, MO 19:06 7:06 PM Monterrey 18:06 6:06 PM You –:–
19:06 7:06 PM
Central Daylight Time · UTC-5
☀️ 07:17 · 🌙 18:16
18:06 6:06 PM
Central Standard Time · UTC-6
☀️ 06:44 · 🌙 18:09
·
−1 h
Monterrey is 1 h behind St. Louis, MO.
When you, St. 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
🇺🇸 St. 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
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Time zones side by side
| Detail | 🇺🇸 St. Louis, MO | 🇲🇽 Monterrey |
|---|---|---|
| Local time | 19:06 | 18:06 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 2026 |
| Time zone | Central Daylight Time | Central Standard Time |
| UTC offset | UTC-5 | UTC-6 |
| Offset from St. Louis, MO | — | −1 h |
| IANA zone | America/Chicago | America/Monterrey |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:17 | 06:44 |
| Sunset | 18:16 | 18:09 |
| Daylight | 10 h 59 min | 11 h 26 min |
| People on this clock | 301,578 | 1,142,994 |
Compare St. Louis, MO with another city
More comparisons with St. Louis, MO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
St. Louis, MO and Monterrey: common questions
How many hours behind St. Louis, MO, is Monterrey?
The clocks in Monterrey are 1 hour behind those in St. Louis (UTC−6 and UTC−5).
What time is it in Monterrey at the start of the working day in St. Louis, MO?
The working day in St. Louis starts at 9:00 AM; in Monterrey it is 8:00 AM at that moment.
If it is 6:00 PM in St. Louis, MO, what time is it in Monterrey?
At 6:00 PM in St. Louis, clocks in Monterrey show 5:00 PM.
When do working hours in St. Louis, MO, and in Monterrey overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in St. Louis, which is 9:00 AM to 5:00 PM in Monterrey.
When is it still the previous day in Monterrey?
Until 1:00 AM in St. Louis, MO, it is still the previous day in Monterrey. The other way round, from 11:00 PM in Monterrey it is already the next day in St. Louis.
Does the time gap between St. Louis, MO, and Monterrey change during the year?
Yes – daylight saving time is used in St. Louis but not in Monterrey. From November 1, 2026, Monterrey and St. Louis will have the same time.
