Does DateTime.ToString(“s”) return always same format?
-
21-08-2019 - |
Question
According to MSDN on DateTime.ToString ToString("s") should always return string in the format of the sortable XML Schema style formatting, e.g.: 2008-10-01T17:04:32.0000000
In Reflector I came to this pattern inside DateTimeFormatInfo.
public string SortableDateTimePattern
{
get
{
return "yyyy'-'MM'-'dd'T'HH':'mm':'ss";
}
}
Does DateTime.ToString("s") return always a string in this format?
Regardless the Culture, Region, ...
Yes it does
Code to test that
var dateTime = DateTime.Now;
var originialString = dateTime.ToString("s");
string testString;
foreach (var c in System.Globalization.CultureInfo.GetCultures(CultureTypes.AllCultures))
{
Thread.CurrentThread.CurrentUICulture = c;
if (c.IsNeutralCulture == false)
{
Thread.CurrentThread.CurrentCulture = c;
}
testString = dateTime.ToString("s");
Console.WriteLine("{0} ", testString);
if (originialString != testString)
{
throw new ApplicationException(string.Format("ToString(s) is returning something different for {0} " , c));
}
}
Solution
Yes it does. As others have said it only contains numeric values and string literals (e.g. 'T' and ':'), nothing that is altered by region or culture settings.
OTHER TIPS
Yep. Breaking that pattern down, it's only numeric properties, there's no reference to anything like month or day names in there.
yyyy - 4 digit date
MM - 2 digit month, with leading zero
dd - 2 digit day, with leading zero
T - a literal T
HH - 2 digit hour, with leading zero, 24 hour format
mm - 2 digit minute, with leading zero
ss - 2 digit second, with leading zero