I am confused as to which timezone I should be using in the Scheduled Backup field. I am in Brisbane, Australia timezone and my website is hosted by a Hostgator server in the US. I have 'Brisbane' time set in my WP > General Settings. My web support tech lives in California so I wish to choose a weekly scheduled backup time that it is unlikely either of us would be making site changes (e.g. 4.00am PDT; = 9.00pm AEST; = 11.00am UTC). No matter which of these date/times I put in the scheduled backup field it doesn't seem to align with any of the others.
I would greatly appreciate some advice of what timezone does WP DB Backup use.