You can set a specific (i.e., fixed) time window if you want to review data for a historical event. You can also set a time window relative to the current time to monitor incoming data in real-time.
To set or change the time window:
If you would like to set the time window relative to the current date and time, select the Relative to Current Time and enter the Look Back Time and select either Days or Hours as the time unit. Normally you will set the time window to extend backward one to thirty days from the current time. Optionally, you can enter a Look AheadTime and select either days or hours.
If you would like to set a historical time window, select Specific Time Window and enter the Start Date / Time and the End Date / Time of the time window you are interested in.
