If you climb more than one peak in the day, the best approach for entering times is to enter the start, summit, and stop times for the first summit reached and then enter the appropriate times for each subsequent peak using the first summit, saddle, and second summit time fields.  For example, imagine a climb starting at 6AM that reaches a first summit at 9AM, a  saddle at 10AM, a second summit at 11AM, and finishes at 1PM.  For the first peak, 6AM is entered as the start time, 9AM is entered as the summit time, and 1PM is entered as the stop time.  The trip time is shown as "7:00" in your PPR, and the ascent rate is calculated based upon the three hours required to reach the first summit.  For the second peak, 9AM is entered as the first summit time, 10AM is entered as the saddle time, and 11AM is entered as the second summit time.  The trip time is shown as "2:00" in your PPR, which was the time taken to travel from the first summit to the second summit, and the ascent rate is calculated based upon the one hour taken to reach the second summit from the saddle. 

If your climb involves a backpack, the ascent rate is calculated based upon the elevation gain and time spent climbing on the summit day, thereby excluding the time and elevation of the first day of the backpack.  Accordingly, the ascent rate is calculated using the difference between the times entered for the "Summit Time" and the Camp Start Time" fields.  The ascent elevation should be based upon the camp elevation, and the elevation gained during the backpack should be recorded as secondary elevation.  Recording the "Backpack Start Time" and Camp Stop Time" for the first day of backpacking allows for an accurate calculation of the total trip time, which is the time spent hiking over the backpack.