Salaried w-2 employees do not receive overtime. 1099 employees are self-employed, no overtime. Overtime in a day versus overtime in a weekly pay period, the overtime may not be paid for the day if week remains under 40 hours depending on US state. On a vacation, holiday, or sick day pay in a week, it can negate overtime since a person thinks the vacation day is a paid work time not working. Counting days, pay periods can still have over 40 hours in 7 days without overtime pay.
Some is location dependent laws.
And, assuming you mean overtime premium. All time worked is supposed to be paid, except salaried and some methods of 1099 setups.
In comment of A Hunch, salaried positions requiring overtime, I would have to investigate exact state laws, and no location is in the question, and any rules changes by Trump's brigade who favors employers over employees.