Why do some places have employees work 7.75 hours/day instead of 8.0 hours /day?

Question

Why do some places have employees work 7.75 hours/day instead of 8.0 hours /day?

Answer 1

I would guess it is a paid 15 minute break.  

Answer 2

Maybe if they work them full time they will have to provide benefits and they're too cheap to do that.  

Answer 3

I believe that working over 8 hours a day, is consider overtime.

And company's have to give the employee more benefits if they are working overtime, plus they have to pay taxes, etc.

The reason more employees work 7.75 hours a day, instead of 8.0 hours is because overtime. And overtime will cause stress to the company and the employee.

Answer 4

They do it to avoid the legal obligations due full time employee.