Dates are overlapped in Highchart's areachart - javascript

I am using Highcharts area graph.
The type of the chart is "datetime".
The X-Axis labels get well adjusted as long as
Either the width of the chart container div is less than 900px
Or the width is not specified for the div
When I set the width of the container of the div more than 900px, either the labels are appended with the dots or get overlapped.
How it can be resolved. Thanks in advance for any suggestion or help.

You can add the tickInterval option to the x-Axis. This option determines the distance between the individual ticks. For example setting it to
tickInterval: 24*3600*1000
which resembles on day in milliseconds yields no overlapping labels for your chart:
https://jsfiddle.net/doc_snyder/mwzd1rc8/1/

You can also use a new option provided below by highcharts if you are comfortable with showing the labels in 2 or more lines and if you do not want rotated labels.
staggerLines: 2
https://jsfiddle.net/bhavinpatel/153eh40z/

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https://jsfiddle.net/kzk07ocw/

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