Is it possible that the daypilot emitted javascript executes after page load?

You can initialize it using the JavaScript API directly instead of calling the @Html.DayPilotScheduler() helper.

Example:

function initScheduler() {
  var dps = new DayPilot.Scheduler('dpScheduler');  // assumes <div id="dpScheduler"></div> placeholder in the page
  dps.allowMultiSelect = true; 
  dps.api = 1; 
  // set other properties here, they usually have the same name as in DayPilotSchedulerConfig
  // see also http://api.daypilot.org/daypilot-scheduler-properties/
  // ...
  dps.init();
}

OK. I'll try that.

But I think there should be a way to handle this using that MVC helper method only, instead of writing my own custom javascript. Why would I use DayPilot MVC then?

Probably just a feature request I'm talking about. :-)

I could add an option to load daypilot.js asynchronously using the Html helper but that would mean the loading would be handled by the helper and not your code. Would that work for you?

Probably not.

I'm trying to initialize the scheduler using the javascript api as you suggested. But now I've come across another problem, which I'll first try to work around before asking you. :-)

Is there any downside of initializing the scheduler after pageLoad, and that too only optionally?