Contract says you may be needed to work additional hours, days, weekends and public holidays to meet deadlines...
So if business demands stupidly tight deadlines, they have to be met by working weekends...
But seriously... even if I do the core work hours, and a little more by coming in early, they still aren't happy and complain... not worth it for an extra $10 a day I think... and possible lead role? Haha... their lead doesn't even want to be here, he'd been in the company 7 years, but everytime he's wanted to leave, it was the GFC or an employment low or something...