Ottawa, IL to Monterrey: time difference
Monterrey is 1 h behind Ottawa, IL. 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.
Ottawa, IL 22:15 10:15 PM Monterrey 21:15 9:15 PM You –:–
22:15 10:15 PM
Central Daylight Time · UTC-5
☀️ 07:14 · 🌙 18:07
21:15 9:15 PM
Central Standard Time · UTC-6
☀️ 06:44 · 🌙 18:09
·
−1 h
Monterrey is 1 h behind Ottawa, IL.
When you, Ottawa, IL 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
🇺🇸 Ottawa, IL
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 | 🇺🇸 Ottawa, IL | 🇲🇽 Monterrey |
|---|---|---|
| Local time | 22:15 | 21:15 |
| 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 Ottawa, IL | — | −1 h |
| IANA zone | America/Chicago | America/Monterrey |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:14 | 06:44 |
| Sunset | 18:07 | 18:09 |
| Daylight | 10 h 52 min | 11 h 26 min |
| People on this clock | 18,342 | 1,142,994 |
Compare Ottawa, IL with another city
More comparisons with Ottawa, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Ottawa, IL and Monterrey: common questions
What is the time difference between Ottawa, IL, and Monterrey?
Monterrey is 1 hour behind: it uses UTC−6, while Ottawa is on UTC−5.
What time is it in Monterrey when it is 9:00 AM in Ottawa, IL?
When it is 9:00 AM in Ottawa, it is 8:00 AM in Monterrey.
If it is 6:00 PM in Ottawa, IL, what time is it in Monterrey?
At 6:00 PM in Ottawa, clocks in Monterrey show 5:00 PM.
When is a good time to call Monterrey from Ottawa, IL?
Between 10:00 AM and 6:00 PM in Ottawa – that is 9:00 AM to 5:00 PM in Monterrey – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Ottawa, IL, is it still yesterday in Monterrey?
Before 1:00 AM in Ottawa, the date in Monterrey has not changed yet. From 11:00 PM in Monterrey, it is already the next day in Ottawa.
Is the time difference between Ottawa, IL, and Monterrey the same all year?
No. Only Ottawa switches to summer time, so the gap changes twice a year. From November 1, 2026, Monterrey and Ottawa will have the same time.
