C# Timer or Thread.Sleep

Question

I am running a windows service and using a loop and Thread.Sleep to repeat a task, would it be better to use a timer method?

If yes a code example would be great

I am currently using this code to repeat

int curMinute;
int lastMinute = DateTime.Now.AddMinutes(-1).Minute;

while (condition)
{
   curMinute = DateTime.Now.Minute;

   if (lastMinute < curMinute) {
         // do your once-per-minute code here
         lastMinute = curMinute;
   }

   Thread.Sleep(50000);      // sleeps for 50 seconds

   if (error condition that would break you out of this) {
       break;      // leaves looping structure
   }
}

Answer 1

class Program
{
    static void Main(string[] args)
    {
        Timer timer = new Timer(new TimerCallback(TimeCallBack),null,1000,50000);
        Console.Read();
        timer.Dispose();
    }

    public static void TimeCallBack(object o)
    {
      curMinute = DateTime.Now.Minute;
      if (lastMinute < curMinute) {
       // do your once-per-minute code here
       lastMinute = curMinute;
    }
}

The code could resemble something like the one above