When you white balance, use a small piece of 1/8 to 1/4 CTO (correct to orange) gel; this will add warmth to the shot, especially since you’re shooting through a window.
After you do your white balance, set the iris to auto; it will adjust as the sun sets.
Also, as another option to roll an hour of tape and speed it up in post, you can set the camera to intermittent recording, a simplified version of time lapse. Under the “Interval Rec” setting of the Recording Setup screen in the menu settings, you can set up to record a set length (15, 30, 45, or 60 frames: “Rec Time”) at a given interval (every 30 seconds, every 60 seconds, every five minutes, or every 10 minutes: “Interval Time”)