Australia calling: 37.5hr week please. It be law.
Anecdotally speaking, all my mates who work in private construction office jobs regularly do quite a bit of unpaid overtime. It's very much a combined cultural and managerial issue, clocking off at the correct hours gets you the stink-eye, and the volume of work assigned necessitates overtime.
https://www.industrialrelations.nsw.gov.au/employers/nsw-emp...