When planning a call, meeting, or trip between Ottawa, Canada, and Las Vegas, Nevada, knowing the time difference is essential. Ottawa sits in the Eastern Time Zone (ET), while Las Vegas follows Pacific Time (PT). During standard time (when Daylight Saving Time is not in effect), Eastern Time is three hours ahead of Pacific Time. That means if the clock reads 5:00 PM in Ottawa, it’s only 2:00 PM in Las Vegas.
Both regions observe Daylight Saving Time, but the shift occurs on the same dates. From the second Sunday in March to the first Sunday in November, both zones move their clocks forward one hour. During this period, the three‑hour gap remains unchanged—Eastern Daylight Time (EDT) is still three hours ahead of Pacific Daylight Time (PDT). So, 5:00 PM EDT in Ottawa equals 2:00 PM PDT in Las Vegas.
| Season | Ottawa (ET/EDT) | Las Vegas (PT/PDT) | Difference |
|---|---|---|---|
| Standard Time (Nov–Mar) | 5:00 PM EST | 2:00 PM PST | 3 hours |
| Daylight Time (Mar–Nov) | 5:00 PM EDT | 2:00 PM PDT | 3 hours |
Whether you’re scheduling a business call or planning a visit, remembering this consistent three‑hour offset will keep you on time.