Monterrey to Naperville, IL: time difference
Naperville, 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 15:47 3:47 PM Naperville, IL 16:47 4:47 PM You –:–
15:47 3:47 PM
Central Standard Time · UTC-6
☀️ 06:43 · 🌙 18:10
16:47 4:47 PM
Central Daylight Time · UTC-5
☀️ 07:11 · 🌙 18:05
·
+1 h
Naperville, IL is 1 h ahead of Monterrey.
When you, Monterrey and Naperville, 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
🇺🇸 Naperville, 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
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Time zones side by side
| Detail | 🇲🇽 Monterrey | 🇺🇸 Naperville, IL |
|---|---|---|
| Local time | 15:47 | 16:47 |
| 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 | 07:11 |
| Sunset | 18:10 | 18:05 |
| Daylight | 11 h 27 min | 10 h 54 min |
| People on this clock | 1,142,994 | 149,540 |
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 Naperville, IL: common questions
How many hours ahead of Monterrey is Naperville, IL?
The clocks in Naperville are 1 hour ahead of those in Monterrey (UTC−5 and UTC−6).
What time is it in Naperville, IL, when it is 9:00 AM in Monterrey?
When it is 9:00 AM in Monterrey, it is 10:00 AM in Naperville.
What time is it in Naperville, IL, at the end of the working day in Monterrey?
The working day in Monterrey ends at 6:00 PM; in Naperville it is 7:00 PM at that moment.
Is there a time when both Monterrey and Naperville, IL, are at work?
Yes: from 9:00 AM to 5:00 PM in Monterrey (10:00 AM to 6:00 PM in Naperville), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Naperville, IL, compared with Monterrey?
The new day starts in Naperville earlier: at 11:00 PM in Monterrey it is already midnight there. Until 1:00 AM in Naperville, Monterrey is still on the previous day.
Does the time difference between Monterrey and Naperville, IL, change?
Yes. The clocks change only in Naperville. From November 1, 2026, Naperville and Monterrey will have the same time.
