In Brazil, matches were played at 1pm/4pm/7pm local time. If they use the same schedule in Qatar, with the time difference, the last WC match of the day will be ending at 1pm ET, so no overlap with the NFL on Sundays and only one hour with CFB on Saturdays.
Could make for some epic weekends, with soccer matches running from 5am-1pm and football games running from 1pm-midnight.