getWeekNumber static method

int getWeekNumber(
  1. DateTime date
)

Get week number in year

Implementation

static int getWeekNumber(DateTime date) {
  final DateTime firstDayOfYear = DateTime(date.year, 1, 1);
  final int daysSinceFirstDay = date.difference(firstDayOfYear).inDays;
  return (daysSinceFirstDay / 7).floor() + 1;
}