Day and time targeting
Use Day & Time targeting (also known as "daypart targeting") to specify the days and times you want to serve ads.
Set day and time targeting
Open an insertion order or line item's details, then navigate to Day & Time targeting.
Click Add segment to target a particular window of time, then pick the day and start and end times.
Chose the timezone for your targeting.
Day and time targeting can be set relative to either the timezone of your users ("Local") or the timezone of your advertiser ("Advertiser").For TrueView line items, you can only use your advertiser's timezone.
Click Apply once you're done.