calling function at specific time c#

To set the timer interval to the specific time, you can use code such as this:

   DateTime now  = DateTime.Now;
   DateTime specific = DateTime.Today.AddHours(12); // for 12.00 noon say today
   int ms = (int)(specific - now).TotalMilliseconds;
   _tmr.Interval = ms;

Using Timer you could do that easily.


In the following way, you can create a timer, set the specific time interval and start the timer in FormLoad() method.

-------------------------------------------------------------------
  Timer _tmr = new Timer();
 
  _tmr.Interval = 5000;  // interval in millisecond
 
  _tmr.Tick += new EventHandler(tmr_Tick);
 
 
  _tmr.Start();
--------------------------------------------------------------------
// This is the event handler for the timer
void tmr_Tick(object sender, EventArgs e)
 
{
 
  // Here, call the SMS Sending method
 
}

Hope it will help.