using System;

namespace UtilLib
{
    public class DateTimeHelper
    {
        private static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);

        public static DateTime UnixSecondsToDateTimeFast(long seconds)
        {
            return UnixEpoch.AddSeconds(seconds).ToLocalTime();
        }

        public static DateTime UnixMillisecondsToDateTimeFast(long milliseconds)
        {
            return new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds(milliseconds).ToLocalTime();
        }
    }
}