@Chevguy8893 nailed it on the head.....read the light setup section again and you will see that the sunrise and sunset setting (L2) takes 30 minutes to complete each cycle so take that into account when you set your daylight time (L1). The moonlight setting (L3) includes the moonrise and moonset in the setting time but will take the first hour to get to full brightness and the last hour to dim to full darkness....hope this helps as it was a bit confusing for me as well. Her is my setting for reference:
L1 = Daylight: 10am-5:30pm
L2 = Sunrise/set: 9:30am and 5:30pm (Sunrise starts at 9:30am and is complete at 10am - Sunset starts at 5:30 and is complete at 6pm)
L3 = Moonlight: 6pm-10pm (Moonrise starts at 6pm and completes at 7pm and is full moonlight until 10pm and then moonset takes place from 10pm to 11pm.)