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Gets the custom format string for a time value that is based on the Internet Engineering Task Force (IETF) Request for Comments (RFC) 1123 specification.
Assembly: mscorlib (in mscorlib.dll)
The property defines the culture-specific format of date strings that are returned by calls to the DateTime..::..ToString and methods and by composite format strings that are supplied the "r" and "R" standard format strings.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.