Ontario, CA to Mexico City: time difference
Mexico City is 1 h ahead of Ontario, CA. 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.
Ontario, CA 09:39 9:39 AM Mexico City 10:39 10:39 AM You –:–
09:39 9:39 AM
Pacific Daylight Time · UTC-7
☀️ 06:58 · 🌙 18:15
10:39 10:39 AM
Central Standard Time · UTC-6
☀️ 06:32 · 🌙 18:13
·
+1 h
Mexico City is 1 h ahead of Ontario, CA.
When you, Ontario, CA 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
🇺🇸 Ontario, CA
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
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Ontario, CA | 🇲🇽 Mexico City |
|---|---|---|
| Local time | 09:39 | 10:39 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Pacific Daylight Time | Central Standard Time |
| UTC offset | UTC-7 | UTC-6 |
| Offset from Ontario, CA | — | +1 h |
| IANA zone | America/Los Angeles | America/Mexico City |
| Daylight saving | On summer time → UTC-8, Nov 1, 01:00 | Not observed |
| Sunrise | 06:58 | 06:32 |
| Sunset | 18:15 | 18:13 |
| Daylight | 11 h 17 min | 11 h 41 min |
| People on this clock | 185,000 | 9,209,944 |
Compare Ontario, CA with another city
More comparisons with Ontario, CA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Ontario, CA and Mexico City: common questions
What is the time difference between Ontario, CA, and Mexico City?
Mexico City is 1 hour ahead: it uses UTC−6, while Ontario is on UTC−7.
If it is 9:00 AM in Ontario, CA, what time is it in Mexico City?
At 9:00 AM in Ontario, clocks in Mexico City show 10:00 AM.
What time is it in Mexico City when it is 6:00 PM in Ontario, CA?
When it is 6:00 PM in Ontario, it is 7:00 PM in Mexico City.
Is there a time when both Ontario, CA, and Mexico City are at work?
Yes: from 9:00 AM to 5:00 PM in Ontario (10:00 AM to 6:00 PM in Mexico City), the working days (9:00 AM–6:00 PM) overlap.
From what time in Ontario, CA, is it tomorrow in Mexico City?
Once it is 11:00 PM in Ontario, the date in Mexico City has already changed. Until 1:00 AM in Mexico City, it is still the previous day in Ontario.
Does the time difference between Ontario, CA, and Mexico City change?
Yes. The clocks change only in Ontario. From November 1, 2026, Mexico City will be 2 hours ahead of Ontario.
