c# 怎么判断系统时间是12小时制和24小时制

//上面有点笔误，应该是AddHours() private static int TimeMothed(DateTime time) { int result; if (time.Hour > 12) result = 24; else { //等下一次进制 var temp = time.AddHours(12 - time.Hour + 1); if (temp.Hour > 12) result = 24; else result = 12; } return result; } static void Main(string[] args) { Console.WriteLine(TimeMothed(DateTime.Now)); }