I entered the pattern at Belen / Alexander airport 25 minutes after sunset. It was dark, but not as dark as implied by the camera. Still, my little Aiptek camera did a good job.
I check my logs, my last landing was 8:05pm, and civil twilight lasted till 8:08pm, so I had a whole 3 minutes of flying time left when I called it quits.
The runway lights never looked cooler.