Below is an example of jsfiddle example.
When the chart area is too small the x-axis ticks are calculated automatically and hence sometimes the 1st tick displayed can be Oct 3rd or Oct 1st based on the chart area. But I always want the chart to start at 1st of the month no matter what and the interval type should be day. The max data that is fed to the chart is a month long.
Controlling the tick and label start point is not possible as of now. However, with the help of stripline, you can display the labels and ticks at custom intervals as shown in this JSFiddle.