Explain the time rate system and piece rate system?

The time rate system is that system of wage payment in which the workers are paid on the basis of time spent by them in the factory. Under this system, the workers and employees are paid wages on the basis of the time they have worked rather than the volume of output they have produced. Hence, according to this system, wages are paid on hourly, weekly or monthly basis. Under time rate system, the wages earned by a worker is determined by using the following formula.

Wages Earned = Time spent(Attended) x Wage rate per hour/day/week/month