objective c - timeIntervalSinceReferenceDate or timeIntervalSince1970 -

would there advantage using timeintervalsincereferencedate versus timeintervalsince1970 (other fact arm processor 32 bit)?

i long it's converted on server side when using timeintervalsincereferencedate it's fine. timeintervalsince1970 option since arm might upgraded 64 bit before 2038.