Daytime AM radio stations are permitted to broadcast from what times?

Daytime AM radio stations are allowed to broadcast from sunrise to sunset. This regulation is in place to minimize interference with other AM stations that may be operating on the same or nearby frequencies, especially at night when AM signals can travel further due to the propagation conditions.

During the day, the propagation characteristics of AM signals are affected by the presence of the sun, leading to a more limited range. As a result, these stations are permitted to operate within the specific hours that align with daylight to optimize their reach while minimizing potential interference with nighttime operations of other stations. The other options do not reflect the established regulations and practices regarding daytime broadcasting for AM stations.