In a comparison between employee hours required to operate a shift rota, and employee hours available to do so, can be used in two ways. Namely;

  • Surplus of employee hours available. A measure of the additional hours available per employee over, and above that required to operate the shift rota.
  • Surplus of production hours required. A measure of the extent to which employee hours available do not cover all hours required to operate the rota.

In most annual hours agreements, surplus hours refer to the former, that is the surplus of employee hours available.

Surplus Hours