By using this :
Text(new DateTime.fromMillisecondsSinceEpoch(values[index][\"start_time\"]*1000).toString(),
I am getting the ty
If you use the intl package:
var date = DateTime.fromMicrosecondsSinceEpoch(miliseconds * 1000) DateFormat(DateFormat.YEAR_MONTH_DAY, 'pt_Br').format(date.toUtc())
Output: 10 de abril de 2020