At work we have a flexible working time arrangement. You can start any time between 7:30 and 9:30 and finish any time between 16:00 and 18:00, and take Friday afternoon's off too, if you've worked the hours. As long as you average 7hrs 24mins a day for the month, everyone's happy.
Well, for obvious reasons, I've had a little leaway on this over the last year or so.
Today, drum roll please, I hit positive for the first time in 18 or more months
Next Friday I play golf, and I won't owe the company the time