Time in Ontario and London
The time difference between Ontario, California, and London is 8 hours. London is 8 hours ahead of Ontario.
This means 9am in Ontario is 5pm in London and 5pm in Ontario is 1am in London (next day).
Ontario
- The current local time in Ontario is 10:59 pm (June 25, 2026)
- Ontario is in the Pacific Daylight Time Zone
- The time zone offset for Ontario, United States, is UTC-07:00
London
- The current local time in London is 6:59 am (June 25, 2026)
- London is in the British Summer Time Zone
- The time zone offset for London, United Kingdom, is UTC+01:00
How to convert Ontario time to London time?
Add 8 hours to Ontario time to get London time.
Time in Ontario
00:00
Time in London
00:00
Use the slider above to convert Ontario time to London time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| Ontario | London |
|---|---|
| 12am | 8am |
| 1am | 9am |
| 2am | 10am |
| 3am | 11am |
| 4am | 12pm |
| 5am | 1pm |
| 6am | 2pm |
| 7am | 3pm |
| 8am | 4pm |
| 9am | 5pm |
| 10am | 6pm |
| 11am | 7pm |
| 12pm | 8pm |
| 1pm | 9pm |
| 2pm | 10pm |
| 3pm | 11pm |
| 4pm | 12am |
| 5pm | 1am |
| 6pm | 2am |
| 7pm | 3am |
| 8pm | 4am |
| 9pm | 5am |
| 10pm | 6am |
| 11pm | 7am |
Time difference from Ontario (UTC-07:00)
+2 hours
+1 hour
+3 hours
+3 hours
-3 hours
+1 hour
+2 hours
+2 hours
+3 hours