7/6 - 61 min run/walk intervals (4.2mi), then walk the dog 10 min.
273/1100
Figment - I vote 8:30 pm if you've got enough light to finish the workout you want to do. 83 degrees is not too bad and the reduced humidity really helps. And as you said, the sun is going down and seems less harsh. Even at 8AM here, the sun feels very strong, the humidity is high and it's very difficult to keep going...