ISO8601 Time Format in C#

ISO 8601 specifies the time format.
In Go language, Duration implements this time format.

package main
 
import (
    "fmt"
    "time"
)
 
func main() {
    t := time.Now()
    fmt.Println(t)
}

Output:

2022-11-19 02:59:28.201938781 +0000 UTC m=+0.000051897

In C#, you can implement Duration by referencing Iso8601DurationHelper.

var duration = Duration.Parse("2022-11-19 02:59:28.201938781 +0000 UTC m=+0.000051897");

To conveniently convert between Duration and TimeSpan, an extension is added:

    public static class DurationExtensions
    {
        /// <summary>
        /// Converts the <see cref="Duration"/> into a <see cref="TimeSpan"/>
        /// </summary>
        /// <param name="duration">The <see cref="Duration"/> to convert</param>
        /// <returns>The converted <see cref="TimeSpan"/></returns>
        public static TimeSpan ToTimeSpan(this Duration duration)
        {
            int days = (int)duration.Days;
            days += (int)duration.Weeks * 7;
            days += (int)duration.Months * 30;
            days += (int)duration.Years * 365;
            return new TimeSpan(days, (int)duration.Hours, (int)duration.Minutes, (int)duration.Seconds);
        }

    }