New York, NY to Ontario, CA: time difference
Ontario, CA is 3 h behind New York, NY. 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.
New York, NY 19:49 7:49 PM Ontario, CA 16:49 4:49 PM You –:–
19:49 7:49 PM
Eastern Daylight Time · UTC-4
☀️ 07:10 · 🌙 18:15
16:49 4:49 PM
Pacific Daylight Time · UTC-7
☀️ 06:58 · 🌙 18:15
·
−3 h
Ontario, CA is 3 h behind New York, NY.
When you, New York, NY 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
🇺🇸 New York, NY
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
21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 New York, NY | 🇺🇸 Ontario, CA |
|---|---|---|
| Local time | 19:49 | 16:49 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Eastern Daylight Time | Pacific Daylight Time |
| UTC offset | UTC-4 | UTC-7 |
| Offset from New York, NY | — | −3 h |
| IANA zone | America/New York | America/Los Angeles |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 07:10 | 06:58 |
| Sunset | 18:15 | 18:15 |
| Daylight | 11 h 5 min | 11 h 17 min |
| People on this clock | 8,804,190 | 185,000 |
Compare New York, NY with another city
More comparisons with New York, NY: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
New York, NY and Ontario, CA: common questions
How many hours behind New York, NY, is Ontario, CA?
The clocks in Ontario are 3 hours behind those in New York (UTC−7 and UTC−4).
What time is it in Ontario, CA, at the start of the working day in New York, NY?
The working day in New York starts at 9:00 AM; in Ontario it is 6:00 AM at that moment.
What time is it in Ontario, CA, at the end of the working day in New York, NY?
The working day in New York ends at 6:00 PM; in Ontario it is 3:00 PM at that moment.
Is there a time when both New York, NY, and Ontario, CA, are at work?
Yes: from 12:00 PM to 6:00 PM in New York (9:00 AM to 3:00 PM in Ontario), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Ontario, CA, compared with New York, NY?
The new day starts in Ontario later: until 3:00 AM in New York, it is still the previous day there. From 9:00 PM in Ontario, New York is already on the next day.
Is the time difference between New York, NY, and Ontario, CA, the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 3 hours.
