判断时间(时：分)是否在某个时间段内

判断时间是否在某个时间段内

 1 using System;
 2
 3 namespace TimeEval
 4 {
 5     class Program
 6     {
 7         static void Main(string[] args)
 8         {
 9             Console.WriteLine("Hello World!");
10
11             Console.WriteLine("=======================");
12
13             bool oneRet = IsInTimeRange(DateTime.Now, "1:00", "8:00");
14             Console.WriteLine("后夜- - - -当前时间：{0},范围：1:00-8:00,结果：{1}", DateTime.Now, oneRet);
15
16             bool twoRet = IsInTimeRange(DateTime.Now, "8:00", "17:00");
17             Console.WriteLine("白班- - - -当前时间：{0},范围：8:00-17:00,结果：{1}", DateTime.Now, twoRet);
18
19             bool threeRet = IsInTimeRange(DateTime.Now, "17:00", "1:00");
20             Console.WriteLine("前夜- - - -当前时间：{0},范围：17:00-1:00,结果：{1}", DateTime.Now, threeRet);
21
22             Console.ReadKey();
23         }
24         /// <summary>
25         /// 判断时间是否在某个时间段内
26         /// </summary>
27         /// <param name="nowTime"></param>
28         /// <param name="beginHm"></param>
29         /// <param name="endHm"></param>
30         /// <returns></returns>
31         public static bool IsInTimeRange(DateTime nowTime, string beginHm, string endHm)
32         {
33             DateTime start = DateTime.Parse(beginHm);
34             DateTime end = DateTime.Parse(endHm);
35             if (start.CompareTo(end) == 1 || start.Equals(end))
36             {
37                 if (GetTimeSpan(nowTime.ToString()) >= GetTimeSpan(start.ToString()) || GetTimeSpan(nowTime.ToString()) <= GetTimeSpan(end.ToString()))
38                 {
39                     return true;
40                 }
41             }
42             else
43             {
44                 if (GetTimeSpan(nowTime.ToString()) >= GetTimeSpan(start.ToString()) && GetTimeSpan(nowTime.ToString()) <= GetTimeSpan(end.ToString()))
45                 {
46                     return true;
47                 }
48             }
49             return false;
50         }
51
52         /// <summary>
53         /// 获取类似java gettime() 格式的时间
54         /// </summary>
55         /// <param name="time">要转换的时间</param>
56         /// <returns>long类型的时间秒数</returns>
57         public static long GetTimeSpan(string time)
58         {
59             if (string.IsNullOrEmpty(time))
60             {
61                 TimeSpan ts = DateTime.Now.ToUniversalTime() - new DateTime(1970, 1, 1);//ToUniversalTime()转换为标准时区的时间,去掉的话直接就用北京时间
62                 return (long)ts.TotalMilliseconds; //精确到毫秒
63             }
64             else
65             {
66                 DateTime dt = Convert.ToDateTime(time);
67                 TimeSpan ts = dt.ToUniversalTime() - new DateTime(1970, 1, 1);//ToUniversalTime()转换为标准时区的时间,去掉的话直接就用北京时间
68                 return (long)ts.TotalMilliseconds; //精确到毫秒
69             }
70         }
71     }
72 }

原文地址：https://www.cnblogs.com/yumaster/p/12096771.html