Windows服务定时运行，判断当前时间是否在配置时间段内

 1         /// <summary>
 2         /// 判断程序是否在设置运行时间内
 3         /// </summary>
 4         /// <param name="startTime">开始执行时间</param>
 5         /// <param name="overTime">执行结束时间</param>
 6         /// <returns>true：在执行时间内，false：在执行时间外</returns>
 7         private bool IsRunTime(string startTime, string overTime)
 8         {
 9             var flag = false;
10 
11             var beginTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " " + startTime);
12             var endTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " " + overTime);
13 
14             if (beginTime <= endTime)   // 当天
15             {
16                 flag = beginTime <= DateTime.Now && DateTime.Now <= endTime;
17             }
18             else    // 跨天
19             {
20                 var zeroTime = Convert.ToDateTime(DateTime.Now.ToString("yyyy-MM-dd") + " 00:00");
21                 flag = (beginTime <= DateTime.Now && DateTime.Now <= zeroTime.AddDays(1)) || (zeroTime <= DateTime.Now && DateTime.Now <= endTime);
22             }
23 
24             return flag;
25         }