jobday

noun2

1. •
   A day of the week, or regular portion of the day (typically 8 hours), during which one is on the job/at work

   • As the joblife becomes a smaller percentage of one's life cycle, as the jobyear, the jobweek, maybe even the jobday become smaller, ... — 1974
2. •
   A measure of time required to do a particular job or set of tasks

   • The variable jobday probably measures the extent to which different jobs are allocated among different staff members. — 1982