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Dates
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Display information about a date

Display the day of month, day of year, month name and day name of the day 8 days from now.
ruby
require 'date'

next_week = Date.today + 8

puts next_week.day # day of month
puts next_week.yday # day of year
puts next_week.strftime('%B') # month name
puts next_week.strftime('%A') # day name
csharp
DateTime date = DateTime.Today.AddDays(8);

Console.WriteLine("Day of month: " + date.Day);
Console.WriteLine("Day of year: " + date.DayOfYear);
Console.WriteLine("Month name: " + date.ToString("MMMM"));
Console.WriteLine("Day name: " + date.ToString("dddd"));

// The two ToString calls will use the current locale.
// To get localised month and day names, see http://msdn.microsoft.com/en-us/library/8tfzyc64.aspx
cpp
QDate dateEightDaysFromNow = QDate::currentDate().addDays(8);

Display a date in different locales

Display a language/locale friendly version of New Year's Day for 2009 for several languages/locales. E.g. for languages English, French, German, Italian, Dutch the output might be something like:

Thursday, January 1, 2009
jeudi 1 janvier 2009
giovedì 1 gennaio 2009
Donnerstag, 1. Januar 2009
donderdag 1 januari 2009

(Indicate in comments where possible if any language specific or operating system configuration needs to be in place.)
csharp
using System.Globalization;

DateTime newYearsDay = new DateTime(2009, 1, 1);
CultureInfo[] locales = {
CultureInfo.CreateSpecificCulture("en-US"),
CultureInfo.CreateSpecificCulture("fr-FR"),
CultureInfo.CreateSpecificCulture("de-DE"),
CultureInfo.CreateSpecificCulture("it-IT"),
CultureInfo.CreateSpecificCulture("nl-NL")
};

foreach (CultureInfo locale in locales)
{
Console.WriteLine(newYearsDay.ToString("D", locale));
}
cpp
QList<QLocale::Language> locales;
locales << QLocale::English
<< QLocale::French
<< QLocale::German
<< QLocale::Italian
<< QLocale::Dutch;

QDate date(2009, 1, 1);
foreach (QLocale::Language ll, locales)
{
QLocale::setDefault(ll);
qDebug() << date.toString(Qt::DefaultLocaleLongDate);
}