UTC とローカル時刻を表示する 

using System;

class Program {
    static void Main() {
        var utc = DateTime.UtcNow;
        var now = DateTime.Now;
        Console.WriteLine("utc now              : {0}", utc);
        Console.WriteLine("utc now -> local     : {0}", utc.ToLocalTime());
        Console.WriteLine("    now              : {0}", now);
        Console.WriteLine("    now -> universal : {0}", now.ToUniversalTime());
    }
}

実行結果です。

utc now              : 2015/12/17 14:50:05
utc now -> local     : 2015/12/17 23:50:05
    now              : 2015/12/17 23:50:05
    now -> universal : 2015/12/17 14:50:05

リンク