holidays_sv

A Flutter/Dart package for calculating and retrieving Swedish holidays, red days (röda dagar), and bank-free days (bankfria dagar).

Features

• Calculate the exact date for Easter Sunday (Påskdagen) using the Computus algorithm.
• Get all official Swedish red days (röda dagar).
• Get all Swedish bank-free days (days where banks and offices are closed, such as Midsummer Eve and Christmas Eve).
• Look up specific dates to see if they are holidays.

Getting started

Add the dependency to your pubspec.yaml:

dependencies:
  holidays_sv: ^0.0.1

Usage

Import the package:

import 'package:holidays_sv/holidays_sv.dart';

Get all holidays for a year

final allHolidays = HolidaysSv.getAllHolidays(2024);
for (var holiday in allHolidays) {
  print('${holiday.date}: ${holiday.name}');
}

Get bank-free days (Bankfria dagar)

Bank-free days are days when banks and most offices are closed. This includes all official red days, plus Christmas Eve, New Year's Eve, Midsummer Eve, and Easter Eve.

Note: Saturdays and Sundays are inherently bank-free, but this method only returns the specifically named holidays that fall on weekdays or are important eves.

final bankFreeDays = HolidaysSv.getBankFreeDays(2024);

Get official red days (Röda dagar)

final redDays = HolidaysSv.getRedDays(2024);

Check if a specific date is a holiday

final today = DateTime.now();
final holidayInfo = HolidaysSv.getHolidayInfo(today);

if (holidayInfo != null) {
  print('Today is ${holidayInfo.name}!');
  if (holidayInfo.isBankFreeDay) print('Banks are closed.');
  if (holidayInfo.isFlagDay) print('Remember to raise the flag!');
} else {
  print('Today is just a regular day.');
}

Properties of SwedishHoliday

• date: The DateTime of the holiday (time is set to 00:00:00).
• name: The name in Swedish (e.g., "Midsommarafton").
• isRedDay: true if it's an official public holiday.
• isBankFreeDay: true if banks and offices are typically closed.
• isFlagDay: true if it is an official Swedish flag day.

Helper Methods

Week Numbers (Veckonummer)

In Sweden, ISO-8601 week numbers are heavily used. You can easily get the week number for any DateTime:

final today = DateTime.now();
print('Vi är nu i vecka ${today.weekNumber}');

Half-days and Squeeze Days (Halvdagar / Klämdagar)

Union contracts in Sweden often stipulate that the day before a red day is a half-day. You can easily check this:

final today = DateTime.now();
if (HolidaysSv.isDayBeforeRedDay(today)) {
  print('Imorgon är det röd dag! Slutar vi vid lunch idag?');
}

if (HolidaysSv.isRedDay(today)) {
  print('Idag är det en röd dag (inklusive alla vanliga söndagar).');
}