using GHIElectronics.TinyCLR.Devices.Rtc;
using System;
using System.Diagnostics;
using System.Threading;

class Program {
    static void Main() {
        var rtc = RtcController.GetDefault();

        rtc.Now = new DateTime(2019, 1, 8, 9, 0, 0);

        while (true) {
            Debug.WriteLine(rtc.Now.ToString());

            Thread.Sleep(1000);
        }
    }
}