using System;

using Quartz;

using TimeZoneConverter;

public class Program

{

    public static void Main()

    {

        var cron = "0 0 12 31W * ?";

        var date = CronScheduleBuilder.CronSchedule(cron)

            .InTimeZone(TZConvert.GetTimeZoneInfo("Australia/Sydney")).Build().GetFireTimeAfter(null);

        Console.WriteLine(date);

    }

}