diff --git a/homeassistant/components/environment_canada/weather.py b/homeassistant/components/environment_canada/weather.py
index 5301843fc0a..a4a8a02cee9 100644
--- a/homeassistant/components/environment_canada/weather.py
+++ b/homeassistant/components/environment_canada/weather.py
@@ -232,19 +232,20 @@ def get_forecast(ec_data, forecast_type):
             )
 
     elif forecast_type == "hourly":
-        hours = ec_data.hourly_forecasts
-        for hour in range(0, 24):
+        for hour in ec_data.hourly_forecasts:
             forecast_array.append(
                 {
-                    ATTR_FORECAST_TIME: dt.as_local(
-                        datetime.datetime.strptime(hours[hour]["period"], "%Y%m%d%H%M")
-                    ).isoformat(),
-                    ATTR_FORECAST_TEMP: int(hours[hour]["temperature"]),
+                    ATTR_FORECAST_TIME: datetime.datetime.strptime(
+                        hour["period"], "%Y%m%d%H%M%S"
+                    )
+                    .replace(tzinfo=dt.UTC)
+                    .isoformat(),
+                    ATTR_FORECAST_TEMP: int(hour["temperature"]),
                     ATTR_FORECAST_CONDITION: icon_code_to_condition(
-                        int(hours[hour]["icon_code"])
+                        int(hour["icon_code"])
                     ),
                     ATTR_FORECAST_PRECIPITATION_PROBABILITY: int(
-                        hours[hour]["precip_probability"]
+                        hour["precip_probability"]
                     ),
                 }
             )