overtime work

"The amount of work on an assignment that can be scheduled beyond a resource's normal shift pattern. Charged at the resource's overtime rate, it is not additional work against the assignment. For example, if an assignment has 48 hours of standard work and 16 hours of overtime work, the total work on the assignment is 48 hours, but the assignment will only take 32 hours to complete, hence reducing the duration of the assignment and potentially reducing the duration of its related task.'

SOURCE; microsoft project glossary-projectlearning.net"