# 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.inputEditDateFormat

The date format in the input boxes when they are selected for editing. This must be a format that is recognized by JavaScript Date.parse.

This will only be used for inputs of type `text`. Since v8.2.3, the input type is dynamically determined based on the granularity of the `inputDateFormat` and the browser support.