get exact day in every month in DateTime

Question

I'm trying make loop 12 times as months in year

for (var i = 1; i <= 12; i++) {
    DateTime.now().add(Duration(days: (i * 30))).toIso8601String())
}

my code is worked correctly but it's give a different days like

If I run loop in today 10 Dec it will give me that

9 January

8 February

9 march

I want a result like that

10 January

10 February

10 march

Answer : I Found my answer of my question here in that package jiffy

dateOfCreated = Jiffy(dateOfCreated).add(months: 1);

Why are you trying to add days, when you need to add a month? — Denis Sablukov, Dec 10 '19 at 15:51
Try answers for this question https://stackoverflow.com/q/54792056/3810510 — Denis Sablukov, Dec 10 '19 at 16:00

score 1 · Answer 1 · answered Dec 10 '19 at 16:07

In the loop you add 30 days to current date, but there are months with 31/29/28 days also. So you should add month's length to get next 10th or else date

void main() {
    var now = DateTime.now();
    for (var i = 1; i <= 12; i++) {
      final lastDay = DateTime(now.year, now.month + 1, 0).day;
      now = now.add(Duration(days: lastDay));
      print(now.toIso8601String());
    }
}

dartpad

score 1 · Answer 2 · answered Dec 10 '19 at 16:51

1

This should work for you...

final now = DateTime.now();
for(int i = 1; i<= 12; i++){
   print(DateTime(now.year, now.month + i, now.day).toIso8601String());
}

answered Dec 10 '19 at 16:51

Kalpesh Kundanani

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get exact day in every month in DateTime

2 Answers2