The hearing system (1) comprises a first processing unit (2A); a second processing unit (2B); and a scheduling unit (3) for jointly scheduling tasks to be executed in said first processing unit (2A) and tasks to be executed in said second processing unit (2B). Preferably, the hearing system (1) comprises a first device (1A) comprising said first processing unit (2A); and a second device (1B) comprising said second processing unit (2B).The method for operating a hearing system (1) comprising a first (2A) and a second (2B) processing unit, comprises the step of jointly scheduling at least one task to be executed in said first processing unit (2A) and at least one task to be executed in said second processing unit (2B). If, during scheduling of a task to be executed in said first processing unit, tasks to be executed in said second processing unit can be considered, an improved performance of the hearing system (1) can be achieved, e.g, an improved time synchronization or an improved handling of obsolete tasks.