There has been a subtle change to the weather beaureas format.
Under the following page, which is the page for Boating weather forecasts, they have issued the time of the report in " UTC " time instead of EST.
What this means is that the "UTC" time is the same as Grennich Mean Time. so to figure about when the report was made. Add 10 hours to the time listed.
http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?IDQ17500.txt
Don't know why they do this, but ???