Flutter Time ago calculator

time_ago_since_now.dart

  static String timeAgoSinceDate(String dateString, {bool numericDates = true}) {
    DateTime date = DateTime.parse(dateString);
    final date2 = DateTime.now();
    final difference = date2.difference(date);

    if ((difference.inDays / 365).floor() >= 2) {
      return '${(difference.inDays / 365).floor()} years ago';
    } else if ((difference.inDays / 365).floor() >= 1) {
      return (numericDates) ? '1 year ago' : 'Last year';
    } else if ((difference.inDays / 30).floor() >= 2) {
      return '${(difference.inDays / 365).floor()} months ago';
    } else if ((difference.inDays / 30).floor() >= 1) {
      return (numericDates) ? '1 month ago' : 'Last month';
    } else if ((difference.inDays / 7).floor() >= 2) {
      return '${(difference.inDays / 7).floor()} weeks ago';
    } else if ((difference.inDays / 7).floor() >= 1) {
      return (numericDates) ? '1 week ago' : 'Last week';
    } else if (difference.inDays >= 2) {
      return '${difference.inDays} days ago';
    } else if (difference.inDays >= 1) {
      return (numericDates) ? '1 day ago' : 'Yesterday';
    } else if (difference.inHours >= 2) {
      return '${difference.inHours} hours ago';
    } else if (difference.inHours >= 1) {
      return (numericDates) ? '1 hour ago' : 'An hour ago';
    } else if (difference.inMinutes >= 2) {
      return '${difference.inMinutes} minutes ago';
    } else if (difference.inMinutes >= 1) {
      return (numericDates) ? '1 minute ago' : 'A minute ago';
    } else if (difference.inSeconds >= 3) {
      return '${difference.inSeconds} seconds ago';
    } else {
      return 'Just now';
    }
  }

dateString example ?