Please override the 'blur' event handler.
$('#ROL_DUR').timespinner({
showSeconds: false
, value: ''
, inputEvents: $.extend({}, $.fn.timespinner.defaults.inputEvents, {
blur: (e) => {
$.fn.timespinner.defaults.inputEvents.blur.call(this,e);
console.log(">>> blur handler wurde getriggert");
}
})
});