Daylight Savings

An email I got at work this week in Melbourne:

Some places have changed their clocks (using the Light-Offset Summer Extension Rule). Please note that as of right now:

Brisbane is one hour behind the ‘LOSER’ sites.

Perth is 3 hours behind the ‘LOSER’ sites.

The ‘LOSER’ sites have all changed by the same amount, so there are no relative changes between them.