O'Fallon, IL to Mexico City: time difference
Mexico City is 1 h behind O'Fallon, 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.
O'Fallon, IL 18:29 6:29 PM Mexico City 17:29 5:29 PM You –:–
18:29 6:29 PM
Central Daylight Time · UTC-5
☀️ 07:15 · 🌙 18:15
17:29 5:29 PM
Central Standard Time · UTC-6
☀️ 06:34 · 🌙 18:10
·
−1 h
Mexico City is 1 h behind O'Fallon, IL.
When you, O'Fallon, IL and Mexico City are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 O'Fallon, 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
🇲🇽 Mexico City
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 | 🇺🇸 O'Fallon, IL | 🇲🇽 Mexico City |
|---|---|---|
| Local time | 18:29 | 17:29 |
| 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 O'Fallon, IL | — | −1 h |
| IANA zone | America/Chicago | America/Mexico City |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:15 | 06:34 |
| Sunset | 18:15 | 18:10 |
| Daylight | 10 h 59 min | 11 h 37 min |
| People on this clock | 94,074 | 9,209,944 |
Compare O'Fallon, IL with another city
More comparisons with O'Fallon, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
O'Fallon, IL and Mexico City: common questions
How far behind O'Fallon, IL, is Mexico City?
Mexico City is 1 hour behind O'Fallon: UTC−6 against UTC−5.
What time is it in Mexico City when it is 9:00 AM in O'Fallon, IL?
When it is 9:00 AM in O'Fallon, it is 8:00 AM in Mexico City.
What time is it in Mexico City at the end of the working day in O'Fallon, IL?
The working day in O'Fallon ends at 6:00 PM; in Mexico City it is 5:00 PM at that moment.
When is a good time to call Mexico City from O'Fallon, IL?
Between 10:00 AM and 6:00 PM in O'Fallon – that is 9:00 AM to 5:00 PM in Mexico City – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Mexico City compared with O'Fallon, IL?
The new day starts in Mexico City later: until 1:00 AM in O'Fallon, it is still the previous day there. From 11:00 PM in Mexico City, O'Fallon is already on the next day.
Is the time difference between O'Fallon, IL, and Mexico City the same all year?
No. Only O'Fallon switches to summer time, so the gap changes twice a year. From November 1, 2026, Mexico City and O'Fallon will have the same time.
