Current local time in OntarioCalifornia, United States
––:––
America/Los_AngelesUTC−8 / UTC−7
Ontario keeps Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer. Its IANA time zone is America/Los_Angeles.
Daylight saving time in Ontario
Ontario changes its clocks twice a year. The next changes, from the IANA time zone database as of October 2026:
- Sun, Nov 1, 2026: clocks go back 1 hour to UTC−8
- Sun, Mar 14, 2027: clocks go forward 1 hour to UTC−7
Cities on the same time as Ontario
These places show the same clock as Ontario every day of the coming year, clock changes included.
- In United States
Los Angeles, San Diego, San Jose, San Francisco, Seattle, Portland, Las Vegas, Fresno
- In other countries
Tijuana (Mexico)
Ontario time zone at a glance
- IANA time zone
- America/Los_Angeles
- UTC offset
- UTC−8 / UTC−7
- Daylight saving
- Observed
- Next clock change
- Sun, Nov 1, 2026 → UTC−8
- Country
- United States
- Region
- California
- Coordinates
- 34.06°, -117.65°
- Population
- 171,214
- Local date
- —
Sunrise and sunset in Ontario today
Computed from Ontario's latitude and longitude for the current local date. Times shift by a minute or two either side depending on elevation and the horizon you actually see.
- Sunrise
- —
- Sunset
- —
- Solar noon
- —
- Day length
- —
- Civil dawn
- —
- Civil dusk
- —
- Golden hour ends
- —
- Golden hour begins
- —
Ontario time difference from major cities
| City | Local time now | Ontario is |
|---|---|---|
| New York CityUnited States | — | 3h behind |
| LondonUnited Kingdom | — | 8h behind |
| DubaiUnited Arab Emirates | — | 11h behind |
| SingaporeSingapore | — | 15h behind |
| TokyoJapan | — | 16h behind |
| SydneyAustralia | — | 18h behind |
Need a different pair? Compare any two cities or convert a specific time.
Ontario time: questions and answers
- What time is it in Ontario right now?
- The clock at the top of this page shows the live local time in Ontario, updated every second from your device's clock. Ontario keeps Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer.
- What time zone is Ontario in?
- Ontario is in the IANA time zone America/Los_Angeles: Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer.
- Does Ontario observe daylight saving time?
- Yes. Upcoming changes: Sun, Nov 1, 2026: clocks go back 1 hour to UTC−8; Sun, Mar 14, 2027: clocks go forward 1 hour to UTC−7.
- Which cities share Ontario's time?
- Los Angeles, San Diego, San Jose, San Francisco, Seattle, Portland keep the same clock as Ontario all year.
Planning something with Ontario?
- Find a meeting time — the hours that overlap between Ontario and your team.
- Convert a time — turn a time in Ontario into yours, or the other way round.
- Compare office hours — when Ontario offices and yours are both open.
- Send a calendar invite — with the America/Los_Angeles time zone set correctly.
Other cities in United States
Los Angeles, San Diego, Las Vegas, Fresno, San Jose, Phoenix, San Francisco, Tucson, Albuquerque, El Paso