AppHarbor.TimeSpanExtensions.GetHumanized C# (CSharp) Method

        public static string GetHumanized(this TimeSpan timeSpan)
        {
            string unit;
            double value;
            if (timeSpan.TotalSeconds < 60)
            {
                unit = "second";
                value = timeSpan.TotalSeconds;
            }
            else if (timeSpan.TotalMinutes < 60)
            {
                unit = "minute";
                value = timeSpan.TotalMinutes;
            }
            else if (timeSpan.TotalHours < 24)
            {
                unit = "hour";
                value = timeSpan.TotalHours;
            }
            else
            {
                unit = "day";
                value = timeSpan.Days;
            }

            var approximateValue = ((int)Math.Round(value / 10.0)) * 10;

            var displayValue = value < 10 ? (int)value : approximateValue;
            unit = displayValue == 1 ? unit : unit + "s";

            return string.Format("{0} {1}", displayValue, unit);
        }