# Welcome to the Highcharts Gantt JS (gantt) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

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# rangeSelector.inputDateFormat

The date format in the input boxes when not selected for editing. Defaults to `%e %b %Y`.

This is used to determine which type of input to show, `datetime-local`, `date` or `time` and falling back to `text` when the browser does not support the input type or the format contains milliseconds.