问题
I'd like to make it so that only dates, not times, are displayed as labels on my Highcharts chart. How can I do that?

Here's an example jsFiddle.
回答1:
you should set the xAxis.minTickInterval
xAxis: {
minTickInterval: 24 * 3600 * 1000
}
jsFiddle 1
jsFiddle 2
I highly encourage going through the vast and useful highcharts api reference before posting questions
回答2:
http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/xaxis/type-datetime/
来源:https://stackoverflow.com/questions/12447771/highcharts-remove-times-between-dates-on-a-datetime-xaxis-type