Question 273356 in Flutter Question posted in
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How to convert "/Date(1639580400000-0000)/" into the date time format in flutter dart

How to convert "/Date(1639580400000-0000)/" into the date time format in flutter dart..

"startDateTime": "/Date(1639580400000-0000)/",

i want to change this string into the date format
: exp- (12-MAY-2023)

I want to convert this string into the date format in the Flutter (dart)

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3

Answers


  1. 0

    You can try this function hope this will work for you

    DateTime parseStringToDate(String input) {
  final RegExp dateRegex = RegExp(r"/Date((d+)([+-]d{4}))/");
  final match = dateRegex.firstMatch(input);

  if (match != null) {
    final timestamp = int.parse(match.group(1)!);
    final offset = match.group(2);
    final milliseconds = timestamp + (offset == "-0000" ? 0 : int.parse(offset!));

    return DateTime.fromMillisecondsSinceEpoch(milliseconds, isUtc: true);
  }

  throw Exception("Invalid date format: $input");
}

    you can checkout full code here
    https://dartpad.dev/?id=4223a468a49f24a41f0282fb990718fb

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  2. 0 
        changeDateFormat(date){
  RegExp? regex = RegExp(r'd+');
  Match? match = regex.firstMatch(date);
  int timestamp = int.parse(match!.group(0).toString());

  DateTime dateTime = DateTime.fromMillisecondsSinceEpoch(timestamp, isUtc: true);
  var convertedDate = DateFormat("dd-MMM-yyyy").format(dateTime);
  return convertedDate;
}
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  3. 0

    add this package (intl) to your pubspec.

    String formatDate() {
  String input = "/Date(1639580400000-0000)/";
  
  int startIdx = input.indexOf("(");
  int endIdx = input.indexOf(")");
  
  String time = input.substring(startIdx+1,endIdx);

  int index = time.indexOf("-");

  if (index == -1) index = time.length;

  String formattedDate = DateFormat('dd-MMM-yyyy').format(
      DateTime.fromMillisecondsSinceEpoch(int.parse(time.substring(0, index))));

  return formattedDate;
}

    demo

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