formatJalaliDateTime method
ISO date text → local "14:05:09 1403/1/1", or just the date at midnight.
Implementation
String formatJalaliDateTime() {
final DateTime dateTime = DateTime.parse(this ?? DateTime.now().toString()).toLocal();
final UJalali jalali = UJalali.fromDateTime(dateTime);
if (dateTime.hour == 0 && dateTime.minute == 0) return "${jalali.year}/${jalali.month}/${jalali.day}";
return "${dateTime.hour.twoDigits}:${dateTime.minute.twoDigits}:${dateTime.second.twoDigits} ${jalali.year}/${jalali.month}/${jalali.day}";
}