Monterrey to Ottawa, IL: time difference
Ottawa, IL 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 21:55 9:55 PM Ottawa, IL 22:55 10:55 PM You –:–
21:55 9:55 PM
Central Standard Time · UTC-6
☀️ 06:44 · 🌙 18:09
22:55 10:55 PM
Central Daylight Time · UTC-5
☀️ 07:14 · 🌙 18:07
·
+1 h
Ottawa, IL is 1 h ahead of Monterrey.
When you, Monterrey and Ottawa, IL 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
🇺🇸 Ottawa, IL
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 | 🇺🇸 Ottawa, IL |
|---|---|---|
| Local time | 21:55 | 22:55 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 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 | 06:44 | 07:14 |
| Sunset | 18:09 | 18:07 |
| Daylight | 11 h 26 min | 10 h 52 min |
| People on this clock | 1,142,994 | 18,342 |
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 Ottawa, IL: common questions
What is the time difference between Monterrey and Ottawa, IL?
Ottawa is 1 hour ahead: it uses UTC−5, while Monterrey is on UTC−6.
If it is 9:00 AM in Monterrey, what time is it in Ottawa, IL?
At 9:00 AM in Monterrey, clocks in Ottawa show 10:00 AM.
What time is it in Ottawa, IL, when it is 6:00 PM in Monterrey?
When it is 6:00 PM in Monterrey, it is 7:00 PM in Ottawa.
When do working hours in Monterrey and in Ottawa, IL, 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 Ottawa.
When is it already the next day in Ottawa, IL?
From 11:00 PM in Monterrey it is already the next day in Ottawa. The other way round, until 1:00 AM in Ottawa it is still the previous day in Monterrey.
Does the time gap between Monterrey and Ottawa, IL, change during the year?
Yes – daylight saving time is used in Ottawa but not in Monterrey. From November 1, 2026, Ottawa and Monterrey will have the same time.
