Add common method for determining if it is daytime

modules/default/weather/weatherobject.js

@@ -116,6 +116,15 @@ class WeatherObject {
 		return this.tempUnits === "imperial" ? feelsLike : ((feelsLike - 32) * 5) / 9;
 	}
 
+	/**
+	 * Checks if the weatherObject is at dayTime.
+	 *
+	 * @returns {boolean} true if it is at dayTime
+	 */
+	isDayTime() {
+		return this.date.isBetween(this.sunrise, this.sunset, undefined, "[]");
+	}
+
 	/**
 	 * Update the sunrise / sunset time depending on the location
 	 *