What Time Zones does the Daily Schedule feature utilize?

The Daily Schedule feature works based on Pacific Standard Time (GMT -8). So even though you may have applied the Daily Schedule feature to run your Campaign only in specific geographical regions, the time slot will still run as per PST. It is imperative that you take care to convert your time slots from the local time of the targeted geographical region to PST, so as to ensure that your campaign is getting delivered at the time slots convenient for you.