DateComparisonBenchmarks.cs

public class DateComparisonBenchmarks
{
    private DateTime _dateTimeA;
    private DateTime _dateTimeB;
    private LocalDate _localDateA;
    private LocalDate _localDateB;

    [GlobalSetup]
    public void GlobalSetup()
    {
        _dateTimeA = new DateTime(2017, 05, 02);
        _dateTimeB = new DateTime(2017, 05, 03);

        _localDateA = LocalDate.FromDateTime(_dateTimeA);
        _localDateB = LocalDate.FromDateTime(_dateTimeB);
    }

    [Benchmark(Baseline= true)]
    public bool Compare_DateTime()
    {
        return _dateTimeA.CompareTo(_dateTimeB) > 0;
    }

    [Benchmark]
    public bool Compare_NodaTime()
    {
        return _localDateA.CompareTo(_localDateB) > 0;
    }

    [Benchmark]
    public bool Compare_Operator_DateTime()
    {
        return _dateTimeA > _dateTimeB;
    }

    [Benchmark]
    public bool Compare_Operator_NodaTime()
    {
        return _localDateA > _localDateB;
    }
}