Question

I’m trying to get a Timer to trigger twice a day, instead of a steady timespan.
I want to trigger the callback at say 07:00 and again at 16:00, then repeat the next day at 07:00.

For some reason it’s eluding me, this doesn’t seem that hard, but I’m thinking I have to build a new Timer each day and kill it and end of day?

Answer 1

Why not just have a timer that ticks every hour and then only respond to the events at 7:00 and 16:00?

var timer = new Timer(TimeSpan.FromHours(1).TotalMilliseconds);
timer.Elapsed += TimerHandler;

void TimerHandler(object sender, EventArgs e) {
  var hour = DateTime.Now.Hour;
  if (hour != 7 && hour != 16) {
    return;
  }
  ...
}