Converts the supplied string to a DateTimeOffset equivalent.
The DateTimeOffset equivalent of the supplied string.
If the offset specified within the input string will cause an overflow in the deserialized representation of the DateTimeOffset, a FormatException is thrown.
When more than seven digits are specified for fractional seconds, the value is rounded. For example, 00000004 becomes 0000000 and 00000005 becomes 0000001.