The format function accepts the value.  You can modify it as you want and then return it.

Here is an example of formatting the date in the area Range Line Demo to hh:mm

formatFunction: (value) => {

const hours = value.getHours().toString().padStart(2, 0);

const minutes = value.getMinutes().toString().padStart(2, 0);

return hours + ':' + minutes;


Should you need any further assistance, please do not hesitate to contact us.

Best Regards,
Svetoslav Borislavov

Smart UI Team