Zone Language - Zones
Then we also need a zone line:
Zone Australia/Adelaide 9:30 Aus CST 1971 Oct 31 2:00
Which defines a zone named 'Australia/Adelaide',
which requires adding 9:30 hours to UTC in order to get to its "local time",
The rules applying to this zone belong to the 'Aus' rules family.
The format for the abbreviation of this time-zone is 'CST' (if it was 'C%T' it would mean that the variable-part is in the middle).
And finally, the UTC offset (or rules) change for this zone on '1971 Oct 31 2:00' - in which case there must be a continuation line specifying what happens right on this date.
Originally written by