We know that a lot of people use Keyhole for time-sensitive campaigns, so Keyhole has the ability to start and stop at specified times.
Start and end times need to be in the future. You can't set a start or end time in the past because Keyhole won't re-analyze old data (or collect historical data).
Start and end times need to be provided in the Eastern (New York) timezone.
To provide specific start and end times for exact campaign metrics, go to the 'Add Advanced' for a tracker:
Under Search Settings, enter the start and end times in the fields provided: