BeerTime

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Test
{
    class BeerTime
    {
        static void Main(string[] args)
        {

            try
            {
                string format = "hh:mm tt";
                DateTime beerTime = DateTime.ParseExact(Console.ReadLine() , format , CultureInfo.InvariantCulture);
                DateTime start = DateTime.Parse("01:00 PM");
                DateTime end = DateTime.Parse("03:00 AM");

                DateTime beforeMidnight = DateTime.Parse("23:59 PM");
                DateTime afterMidnight = DateTime.Parse("00:00 AM");

                if(beerTime >= start && beerTime <= beforeMidnight)
                {
                    Console.WriteLine("beer time");
                }
                else if(beerTime >= afterMidnight && beerTime < end)
                {
                    Console.WriteLine("beer time");
                }
                else if(beerTime >= end && beerTime <= start)
                {
                    Console.WriteLine("non beer time");
                }
            }
            catch(Exception)
            {
                Console.WriteLine("invalid time");
            }
        }
    }
}