Monterrey to Decatur, AL: time difference
Decatur, AL 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 05:35 5:35 AM Decatur, AL 06:35 6:35 AM You –:–
05:35 5:35 AM
Central Standard Time · UTC-6
☀️ 06:43 · 🌙 18:10
06:35 6:35 AM
Central Daylight Time · UTC-5
☀️ 06:58 · 🌙 18:09
·
+1 h
Decatur, AL is 1 h ahead of Monterrey.
When you, Monterrey and Decatur, AL 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
🇺🇸 Decatur, AL
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
- Right now
Time zones side by side
| Detail | 🇲🇽 Monterrey | 🇺🇸 Decatur, AL |
|---|---|---|
| Local time | 05:35 | 06:35 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 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 | 06:43 | 06:58 |
| Sunset | 18:10 | 18:09 |
| Daylight | 11 h 27 min | 11 h 10 min |
| People on this clock | 1,142,994 | 77,047 |
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 Decatur, AL: common questions
How many hours ahead of Monterrey is Decatur, AL?
The clocks in Decatur are 1 hour ahead of those in Monterrey (UTC−5 and UTC−6).
What time is it in Decatur, AL, at the start of the working day in Monterrey?
The working day in Monterrey starts at 9:00 AM; in Decatur it is 10:00 AM at that moment.
What time is it in Decatur, AL, at the end of the working day in Monterrey?
The working day in Monterrey ends at 6:00 PM; in Decatur it is 7:00 PM at that moment.
When is a good time to call Decatur, AL, from Monterrey?
Between 9:00 AM and 5:00 PM in Monterrey – that is 10:00 AM to 6:00 PM in Decatur – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Decatur, AL?
From 11:00 PM in Monterrey it is already the next day in Decatur. The other way round, until 1:00 AM in Decatur it is still the previous day in Monterrey.
Does the time difference between Monterrey and Decatur, AL, change?
Yes. The clocks change only in Decatur. From November 1, 2026, Decatur and Monterrey will have the same time.
