Barcelona to Ontario, CA: time difference
Ontario, CA is 9 h behind Barcelona. 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.
Barcelona 00:02 12:02 AM Ontario, CA 15:02 3:02 PM You –:–
00:02 12:02 AM
Central European Summer Time · UTC+2
☀️ 08:06 · 🌙 19:09
15:02 3:02 PM
Pacific Daylight Time · UTC-7
☀️ 06:58 · 🌙 18:15
·
−9 h
Ontario, CA is 9 h behind Barcelona.
When you, Barcelona 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
🇪🇸 Barcelona
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
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇪🇸 Barcelona | 🇺🇸 Ontario, CA |
|---|---|---|
| Local time | 00:02 | 15:02 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 2026 |
| Time zone | Central European Summer Time | Pacific Daylight Time |
| UTC offset | UTC+2 | UTC-7 |
| Offset from Barcelona | — | −9 h |
| IANA zone | Europe/Madrid | America/Los Angeles |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 08:06 | 06:58 |
| Sunset | 19:09 | 18:15 |
| Daylight | 11 h 4 min | 11 h 17 min |
| People on this clock | 1,660,122 | 185,000 |
Compare Barcelona with another city
More comparisons with Barcelona: the time zones next to it and the far side of the clock.
Big time differences
Barcelona and Ontario, CA: common questions
What is the time difference between Barcelona and Ontario, CA?
Ontario is 9 hours behind: it uses UTC−7, while Barcelona is on UTC+2.
What time is it in Ontario, CA, at the start of the working day in Barcelona?
The working day in Barcelona starts at 9:00 AM; in Ontario it is 12:00 AM at that moment.
If it is 6:00 PM in Barcelona, what time is it in Ontario, CA?
At 6:00 PM in Barcelona, clocks in Ontario show 9:00 AM.
Is there a time when both Barcelona and Ontario, CA, are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Barcelona at 9:00 AM, it is 12:00 AM in Ontario; the day in Ontario starts at 6:00 PM in Barcelona time.
When is it still the previous day in Ontario, CA?
Until 9:00 AM in Barcelona it is still the previous day in Ontario. The other way round, from 3:00 PM in Ontario it is already the next day in Barcelona.
Is the time difference between Barcelona and Ontario, CA, the same all year?
No. Both places use summer time, but they switch on different dates, so for a while the gap changes. From October 25, 2026, Ontario will be 8 hours behind Barcelona.
