showTimePicker(
context: context,
initialTime: TimeOfDay.now(),
builder: (context, _) {
return MediaQuery(
data: MediaQuery.of(context).copyWith(
// Using 24-Hour format
alwaysUse24HourFormat: true),
// If you want 12-Hour format, just change alwaysUse24HourFormat to false or remove all the builder argument
child: _);
});