When "Mickey's Delayed Date" begins, the title screen shows a copyright date of 1941...though IMDB lists the date as being 1947...the same for Wikipedia. After watching, I am inclined to believe and Wikipedia, as the style of Mickey was quite different from 1941 to 1947....and the same can be said for the backgrounds in these shorts. The 1941 era shorts tended to have finer quality and more three dimensional looking backgrounds and Mickey was more finely drawn.
When the story begins, Mickey is asleep and Minnie calls to wonder why he hasn't arrived for their date. He quickly rushes off to meet her and again and again he gets into trouble. He also forgets the tickets he'll need for the date....and Pluto chases him down to bring them to him.
This is an okay cartoon. The animation is about on par with the stuff coming from Looney Toons and slightly less impressive than MGM shorts of 1947. Worth seeing but also a bit blander than the earlier Mickey shorts.