toTimeDateTime method
Parse time only string (e.g., 'HH:mm') into today's DateTime
Implementation
DateTime toTimeDateTime({String format = 'HH:mm'}) {
final now = DateTime.now();
final time = DateFormat(format).parse(this);
return DateTime(
now.year,
now.month,
now.day,
time.hour,
time.minute,
time.second,
);
}