@ingram @Hyperlynx I started to really believe that weekEND logic when I was working full-time. (It's possible, depending on your work schedule, that your personal weekend is Wednesday and Thursday.)

According to the book of Genesis, God created the world in six days and rested on the seventh, which we call Sunday. So God and/or the author of Genesis think Sunday is the last day of the week.

P.S.: I didn't respond to the poll, as I'm not Australian.