using System;

using NodaTime;

​

public class Program

{

    public static void Main()

    {

        var zone = DateTimeZoneProviders.Tzdb.GetZoneOrNull("Pacific/Apia");

        var localTime = new LocalDateTime(2011, 12, 29, 5, 00, 00);

        var before = zone.AtStrictly(localTime);

        var after = zone.AtStrictly(localTime.PlusDays(1));

        Console.WriteLine(before);

        Console.WriteLine(after);

    }

}