DateTime.GetDateTimeFormats Method (Char, IFormatProvider)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Converts the value of this instance to all the string representations supported by the specified standard date and time format specifier and culture-specific formatting information.
Assembly: mscorlib (in mscorlib.dll)
- Type: System.Char
A date and time format string (see Remarks).
- Type: System.IFormatProvider
An object that supplies culture-specific formatting information about this instance.
Return ValueType: System.String 
A string array where each element is the representation of the value of this instance formatted with one of the standard date and time format specifiers.
format is not a valid standard date and time format specifier character.
The format parameter can be any of the standard date and time format specifiers. These include d, D, f, F, g, G, M (or m), O (or o), R (or r), s, t, T, u, U, and Y (or y).
Each element of the return value is formatted using culture-specific information supplied by provider.
Because this method uses culture-sensitive data, you should not assume that multiple calls to the method will return identical data unless provider is a CultureInfo object that represents the invariant culture. The data returned by this method can change if the user overrides the individual cultural settings of provider or if an update occurs to the system's cultural data for provider.