DART

flutter date time to timestamp

DateTime currentPhoneDate = DateTime.now(); //DateTime

Timestamp myTimeStamp = Timestamp.fromDate(currentPhoneDate); //To TimeStamp

DateTime myDateTime = myTimeStamp.toDate(); // TimeStamp to DateTime

print("current phone data is: $currentPhoneDate");
print("current phone data is: $myDateTime");

Get current timestamp in flutter or dart

var timestamp = DateTime.now().millisecondsSinceEpoch.toString()
print(timestamp);

flutter timestamp to datetime

Timestamp t = document['timeFieldName'];
DateTime d = t.toDate();
print(d.toString()); //2019-12-28 18:48:48.364

flutter date timestamp

new DateTime.now().millisecondsSinceEpoch;

flutter timestamp to datetime

DateFormat.yMMMd().add_jm().format(myDateTime);

flutter timestamp to datetime

Map<String, dynamic> map = docSnapshot.data()!;
DateTime dt = (map['timestamp'] as Timestamp).toDate();