The main reason that time blocking works is it helps focus workers on a single task and prevents distractions from occurring. This can increase productivity in the following ways:
Increases focus by providing fixed goals. Because time blocking gives a set amount of time to finish a specific task, it prompts workers to stay focused on what they are doing and gives them a goal to aim towards.
It reduces distractions. Because time blocking focuses on one specific task for a period of time, workers remain focused for longer. No more figuring out what to do next or procrastinating as they meander between tasks at will.
Increases the rate of work of employees. Because workers have a limited, predetermined amount of time to finish a task, it urges them to keep a high pace of work in order to finish on time.
It can help with planning. Because the principle of time blocking lies in constant scheduling, it reduces the time required for planning. With time blocking, you define priorities and allocate specific time periods to them. This can ease the burden of scheduling.
It helps reduce confusion. With time blocking, every worker should know what they are doing at any given time. This can reduce the confusion of what to do next and lessen the chance of an employee completing the wrong task at the wrong time.