The TV broadcast day typically starts at 5 AM in the US. On the schedule, times between midnight and 5 AM might have XM listed instead of AM if it continued to carry the previous day’s name. For example, at a CBS station the Monday schedule would list The Late Show as starting at Monday 11:35:00 PM and The Late Late Show as starting at Monday 12:35:00 XM instead of Tuesday 12:35:00 AM.
The TV broadcast day typically starts at 5 AM in the US. On the schedule, times between midnight and 5 AM might have XM listed instead of AM if it continued to carry the previous day’s name. For example, at a CBS station the Monday schedule would list The Late Show as starting at Monday 11:35:00 PM and The Late Late Show as starting at Monday 12:35:00 XM instead of Tuesday 12:35:00 AM.