" 

 Certainly  just scan some of the headlines for March 21. (I'd provide links but Wikipedia won't accept shortened links from tinyURL or Bitly) Note the references to the first ""full day"" as if March 20 didn't count. I've seen this many times over the past couple of years in newspaper articles and blogs. (This of course applies to Temperate latitudes that follow the 'traditional' four seasons)"