[Datetime-SIG] Clearing up terminology

[Alexander Belopolsky]

On Wed, Jul 29, 2015 at 5:31 PM, Felipe Ochoa
<felipe.nospam.ochoa at gmail.com> wrote:
> * Time zone: "a mapping from UTC instants to offsets"
>
> * Offset: "simply the difference between UTC and local time."
>
> * ZonedDatetime: An instant + a time zone
>
> * OffsetDatetime: An instant + an offset (which is not the same as a
> ZonedDatetime!)
>
> * LocalDatetime: A date/time in the usual "naive" sense: a combination of
> year, month, day, hour, minute, second, millisecond (soon to be nano?)

Given this terminology and the following UNIX date utility invocation,

$ TZ=Australia/Melbourne date +"%c%z"
Thu 30 Jul 2015 10:21:18 AM EST+1000

what is (a) Australia/Melbourne, (b) EST?