Mexico City to O'Fallon, IL: time difference
O'Fallon, IL is 1 h ahead of Mexico City. 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.
Mexico City 18:06 6:06 PM O'Fallon, IL 19:06 7:06 PM You –:–
18:06 6:06 PM
Central Standard Time · UTC-6
☀️ 06:34 · 🌙 18:10
19:06 7:06 PM
Central Daylight Time · UTC-5
☀️ 07:15 · 🌙 18:15
·
+1 h
O'Fallon, IL is 1 h ahead of Mexico City.
When you, Mexico City and O'Fallon, 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
🇲🇽 Mexico City
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
🇺🇸 O'Fallon, 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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- Early
- Working hours
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Time zones side by side
| Detail | 🇲🇽 Mexico City | 🇺🇸 O'Fallon, IL |
|---|---|---|
| Local time | 18:06 | 19:06 |
| 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 Mexico City | — | +1 h |
| IANA zone | America/Mexico City | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 06:34 | 07:15 |
| Sunset | 18:10 | 18:15 |
| Daylight | 11 h 37 min | 10 h 59 min |
| People on this clock | 9,209,944 | 94,074 |
Compare Mexico City with another city
More comparisons with Mexico City: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Mexico City and O'Fallon, IL: common questions
What is the time difference between Mexico City and O'Fallon, IL?
O'Fallon is 1 hour ahead: it uses UTC−5, while Mexico City is on UTC−6.
What time is it in O'Fallon, IL, at the start of the working day in Mexico City?
The working day in Mexico City starts at 9:00 AM; in O'Fallon it is 10:00 AM at that moment.
What time is it in O'Fallon, IL, when it is 6:00 PM in Mexico City?
When it is 6:00 PM in Mexico City, it is 7:00 PM in O'Fallon.
When is a good time to call O'Fallon, IL, from Mexico City?
Between 9:00 AM and 5:00 PM in Mexico City – that is 10:00 AM to 6:00 PM in O'Fallon – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in O'Fallon, IL, compared with Mexico City?
The new day starts in O'Fallon earlier: at 11:00 PM in Mexico City it is already midnight there. Until 1:00 AM in O'Fallon, Mexico City is still on the previous day.
Is the time difference between Mexico City and O'Fallon, IL, the same all year?
No. Only O'Fallon switches to summer time, so the gap changes twice a year. From November 1, 2026, O'Fallon and Mexico City will have the same time.
