Mexico City to Ontario, CA: time difference
Ontario, CA is 1 h behind 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 15:22 3:22 PM Ontario, CA 14:22 2:22 PM You –:–
15:22 3:22 PM
Central Standard Time · UTC-6
☀️ 06:32 · 🌙 18:13
14:22 2:22 PM
Pacific Daylight Time · UTC-7
☀️ 06:58 · 🌙 18:15
·
−1 h
Ontario, CA is 1 h behind Mexico City.
When you, Mexico City and Ontario, CA 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
🇺🇸 Ontario, CA
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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- Working hours
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Time zones side by side
| Detail | 🇲🇽 Mexico City | 🇺🇸 Ontario, CA |
|---|---|---|
| Local time | 15:22 | 14:22 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Central Standard Time | Pacific Daylight Time |
| UTC offset | UTC-6 | UTC-7 |
| Offset from Mexico City | — | −1 h |
| IANA zone | America/Mexico City | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 06:32 | 06:58 |
| Sunset | 18:13 | 18:15 |
| Daylight | 11 h 41 min | 11 h 17 min |
| People on this clock | 9,209,944 | 185,000 |
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 Ontario, CA: common questions
How far behind Mexico City is Ontario, CA?
Ontario is 1 hour behind Mexico City: UTC−7 against UTC−6.
What time is it in Ontario, CA, at the start of the working day in Mexico City?
The working day in Mexico City starts at 9:00 AM; in Ontario it is 8:00 AM at that moment.
What time is it in Ontario, CA, at the end of the working day in Mexico City?
The working day in Mexico City ends at 6:00 PM; in Ontario it is 5:00 PM at that moment.
When do working hours in Mexico City and in Ontario, CA, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Mexico City, which is 9:00 AM to 5:00 PM in Ontario.
Until what time in Mexico City is it still yesterday in Ontario, CA?
Before 1:00 AM in Mexico City, the date in Ontario has not changed yet. From 11:00 PM in Ontario, it is already the next day in Mexico City.
Is the time difference between Mexico City and Ontario, CA, the same all year?
No. Only Ontario switches to summer time, so the gap changes twice a year. From November 1, 2026, Ontario will be 2 hours behind Mexico City.
