Don't always believe what you read on the label re::EdC/EdT. Some EdC's last much longer than other EdT's and some EdT's last longer than EdP's. It depends on the fragrance, the notes, the house, etc.
In accordance with Mr. Guerlain's post, my Habit Rouge EdC lasts all day on my skin.
Dunhill (1934), labeled as an EdC lasts a good 12 hours for me. Certain Creed fragrances, listed as EdP don't last beyond 4 hours for me. Sample specifics for yourself see what happens.
Lastly and most importantly, welcome to Basenotes!