SetDateAndTime.js

define(["sitecore"], function (Sitecore) {
  Sitecore.Commands.SetDateAndTime =
  {
    // code omitted...
    
    execute: function (context) {
      // When the dialog is being opened a request to the 'ExperienceEditor.PreviewDate.GetPreviewDateUrl' processor
      // is made. In essence, this gets the currently set preview date which is used from within the dialog.
      Sitecore.ExperienceEditor.PipelinesUtil.generateRequestProcessor("ExperienceEditor.PreviewDate.GetPreviewDateUrl", function (response) {
        Sitecore.ExperienceEditor.Dialogs.showModalDialog(response.responseValue.value, '', '', null, function (result) {
          if (!result) {
            return;
          }
          
          // Once the dialog is being closed, the datetime set is stored in the current context
          context.currentContext.value = result;
          
          // And a request to the 'ExperienceEditor.PreviewDate.SetDateValue' processor is made
          Sitecore.ExperienceEditor.PipelinesUtil.generateRequestProcessor("ExperienceEditor.PreviewDate.SetDateValue", function () {
            Sitecore.ExperienceEditor.modifiedHandling(null, function(isOk) {
              // Once the preview date is set, Sitecore reloads the window
              window.top.location.reload();
            });
          }).execute(context);
        });
      }).execute(context);
    }
  };
});