How to show time format

I want to show only its time without date, so that my chart can be displayed perfectly. The problem is DateFormat that I used is not properly like below:

with the code like this:

xValueMapper: (GraphicLoadUnload data, _) => data.startDate.toString()

while I want the date only shows time like this:

>Solution :

import 'package:intl/intl.dart';

DateTime now = DateTime.now(); //Set your datetime value
String formattedDate = DateFormat('kk:mm').format(now);