“Decision fatigue” is the mental exhaustion caused by considering, selecting, and executing choices. The more choices we make, the more mentally worn we become and the larger the number of errors that we will make.
The best time of day to create intelligent forms? Morning after a good breakfast. The brain will move resources from routine uses to making decisions.
That makes afternoon the best time to use the fully-automated forms to make documents. Use forms in the afternoon. Let your brain coast as the computer picks up the load.
See: The New York Times