how to run schedule process every day when server time is 24:00:00 or(12 pm)

public class Scheduler
 {
     private class CacheItem
     {
         public string Name;
         public Callback Callback;
         public Cache Cache;
         public DateTime LastRun;
     }


     public delegate void Callback();

     private static int _numberOfMinutes = 1;

     public static void Run(string name, int minutes, Callback callbackMethod)
     {
         _numberOfMinutes = minutes;

         CacheItem cache = new CacheItem();
         cache.Name = name;
         cache.Callback = callbackMethod;
         cache.Cache = HttpRuntime.Cache;
         cache.LastRun = DateTime.Now;
         AddCacheObject(cache);
     }


     private static void AddCacheObject(CacheItem cache)
     {
         if (cache.Cache[cache.Name] == null)
         {
             cache.Cache.Add(cache.Name, cache, null,
                  DateTime.Now.AddMinutes(_numberOfMinutes), Cache.NoSlidingExpiration,
                  CacheItemPriority.NotRemovable, CacheCallback);
         }
     }


     private static void CacheCallback(string key, object value, CacheItemRemovedReason reason)
     {
         CacheItem obj_cache = (CacheItem)value;
         if (obj_cache.LastRun < DateTime.Now)
         {
             if (obj_cache.Callback != null)
             {
                 obj_cache.Callback.Invoke();
             }
             obj_cache.LastRun = DateTime.Now;
         }
         AddCacheObject(obj_cache);
     }

 }

protected void Application_Start(object sender, EventArgs e)
       {
           if(DateTime.Now.TimeOfDay == Yourtime;)
           Scheduler.Run("test", 20, RunScheduleTasks);
       }