Mexico City to Union City, CA: time difference
Union City, 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 03:30 3:30 AM Union City, CA 02:30 2:30 AM You –:–
03:30 3:30 AM
Central Standard Time · UTC-6
☀️ 06:34 · 🌙 18:09
02:30 2:30 AM
Pacific Daylight Time · UTC-7
☀️ 07:24 · 🌙 18:23
·
−1 h
Union City, CA is 1 h behind Mexico City.
When you, Mexico City and Union City, 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
🇺🇸 Union City, 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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇲🇽 Mexico City | 🇺🇸 Union City, CA |
|---|---|---|
| Local time | 03:30 | 02:30 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 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 | 06:34 | 07:24 |
| Sunset | 18:09 | 18:23 |
| Daylight | 11 h 35 min | 10 h 59 min |
| People on this clock | 9,209,944 | 63,930 |
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 Union City, CA: common questions
What is the time difference between Mexico City and Union City, CA?
Union City is 1 hour behind: it uses UTC−7, while Mexico City is on UTC−6.
What time is it in Union City, CA, when it is 9:00 AM in Mexico City?
When it is 9:00 AM in Mexico City, it is 8:00 AM in Union City.
What time is it in Union City, CA, when it is 6:00 PM in Mexico City?
When it is 6:00 PM in Mexico City, it is 5:00 PM in Union City.
When is a good time to call Union City, CA, from Mexico City?
Between 10:00 AM and 6:00 PM in Mexico City – that is 9:00 AM to 5:00 PM in Union City – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Union City, CA?
Until 1:00 AM in Mexico City it is still the previous day in Union City. The other way round, from 11:00 PM in Union City it is already the next day in Mexico City.
Is the time difference between Mexico City and Union City, CA, the same all year?
No. Only Union City switches to summer time, so the gap changes twice a year. From November 1, 2026, Union City will be 2 hours behind Mexico City.
