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

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

Feel free to search this API through the search bar or the navigation tree in the sidebar.

# time.useUTC

Whether to use UTC time for axis scaling, tickmark placement and time display in `Highcharts.dateFormat`. Advantages of using UTC is that the time displays equally regardless of the user agent's time zone settings. Local time can be used when the data is loaded in real time or when correct Daylight Saving Time transitions are required.

Setting `useUTC` to true is equivalent to setting `time.timezone` to `"UTC"`. Setting `useUTC` to false is equivalent to setting `time.timezone` to `undefined`.