How to Get Difference Between Two DateTime in Dart/Flutter

How to Get Difference Between Two DateTime in Dart/Flutter

In Dart/Flutter, there are several ways to get the difference between two DateTime objects. Here are some examples:

1. Using the difference() method:

The difference() method returns a Duration object that represents the difference between two DateTime objects.

DateTime date1 = DateTime(2023, 3, 1, 12, 0, 0);
DateTime date2 = DateTime(2023, 3, 18, 12, 0, 0);

Duration difference = date2.difference(date1);

print(difference); // Output: 17 days, 0:00:00.000000

2. Using the inDays property:

The inDays property returns the number of days between two DateTime objects.

DateTime date1 = DateTime(2023, 3, 1, 12, 0, 0);
DateTime date2 = DateTime(2023, 3, 18, 12, 0, 0);

int differenceInDays = date2.difference(date1).inDays;

print(differenceInDays); // Output: 17

3. Using the difference() method and custom functions to extract the difference in specific units:

DateTime date1 = DateTime(2023, 3, 1, 12, 0, 0);
DateTime date2 = DateTime(2023, 3, 18, 12, 0, 0);

Duration difference = date2.difference(date1);

int differenceInDays = difference.inDays;
int differenceInHours = difference.inHours % 24;
int differenceInMinutes = difference.inMinutes % 60;
int differenceInSeconds = difference.inSeconds % 60;

print("$differenceInDays days, $differenceInHours hours, $differenceInMinutes minutes, $differenceInSeconds seconds"); // Output: 17 days, 0 hours, 0 minutes, 0 seconds

4. Using the Duration constructor to create a Duration object directly:

DateTime date1 = DateTime(2023, 3, 1, 12, 0, 0);
DateTime date2 = DateTime(2023, 3, 18, 12, 0, 0);

Duration difference = Duration(milliseconds: date2.millisecondsSinceEpoch - date1.millisecondsSinceEpoch);

int differenceInDays = difference.inDays;

print(differenceInDays); // Output: 17

These are some ways to get the difference between two DateTime objects in Dart/Flutter. Choose the one that best suits your needs.