What are man time and machine time?

Question

Accepted Answer

Man time refers to the time spent by human workers on a task, while machine time refers to the time a machine takes to complete a task.

Man time is the time spent by human workers on a task, including setup, operation, and maintenance.
Machine time is the time a machine takes to complete a task, including processing, idle time, and downtime.
Man time and machine time are important factors in determining overall production efficiency and cost.
For example, in a manufacturing process, man time may involve workers assembling components, while machine time may involve a CNC machine cutting parts.