using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Globalization;

public class Program

{

    private static Tuple<DateTime, DateTime> ParseDate(string dateTimes)

    {

        var split = dateTimes.Split(new[] { " to " }, StringSplitOptions.None);

        var time1 = DateTime.ParseExact(split[0], "h:mm tt",

                                            CultureInfo.InvariantCulture);

        var time2 = DateTime.ParseExact(split[1], "h:mm tt",

                                            CultureInfo.InvariantCulture);

        return Tuple.Create(time1, time2);

    }

    private static bool NotConflict(IEnumerable<string> times, string time) {

        var incTime = ParseDate(time);

        return !times.Any(t => {

            var parsed = ParseDate(t);

            return incTime.Item1 <= parsed.Item2 && parsed.Item1 <= incTime.Item2;

        });

    }

    public static void Main()

    {

        var times = new List<string>();

        times.Add("6:00 PM to 9:00 PM");

        times.Add("10:00 AM to 1:00 PM");

        Console.WriteLine("No Conflict 5:00 PM to 7:00 PM: {0}", NotConflict(times, "5:00 PM to 7:00 PM"));

        Console.WriteLine("No Conflict 2:00 PM to 5:00 PM: {0}", NotConflict(times, "2:00 PM to 5:00 PM"));

    }

}