fromIso8601
Creates a new instance from a from an ISO 8601 date. This method is superior to Date.parse
because it will handle all valid formats defined by the ISO 8601 specification, including leap seconds and sub-millisecond times, which discarded by most JavaScript implementations.
Return
The modified result parameter or a new instance if none was provided.
Parameters
iso8601String
An ISO 8601 date.
result
An existing instance to use for the result.