All placements’ hourly statistics can be viewed inline by clicking the “Hourly Stats” icon on the “Publisher Details” page. Hourly stats will sort traffic statistics by hours per day for the date range chosen. You can also filter the data by date or view for a specific ad group. The data can be exported by clicking on the “Export” option.
Note: Hour "0" is 12:00 AM to 12:59 AM, hour "1" is 1:00 AM to 1:59 AM, etc. Data is based on user's time zone.