CanvasJS Strange format of Time on x-Axis

I created this diagram with canvasJS. The X-axis is supposed to show the time of the day in hours. Right now, the time looks like 1:0, 3:0. But I would like to have it like 01:00, 03:00. How can I fix that? Furthermore, the Y-axis does not set automatically. I would like to have only the value area in which points are set. Thank you very much!