On some stations, syndicated programming may fill timeslots where local newscasts would traditionally air, either due to the station not programming news in certain time periods or because it does not operate a news department; similarly, local news programs in the late evening hours may air during the final hour of prime time (10:00 p.m. in the Eastern and Pacific Time Zones and 9:00 p.m. in all others) and/or during the morning commute period (7:00 to 9:00 or 10:00 a.m. in all time zones), usually on stations affiliated with networks other than those classified as part of the "Big Three" (ABC, NBC and CBS) and those without a network affiliation.