Was He In Uniform The Night Of The Sinking

The film "SOS Titanic" depicts Butt in uniform the entire time of the voyage. Perhaps so viewers could easily distinguish him at the card table in the first class smoking room.
Having just read the posted newspaper account of his natty suit the day he left America in March 1912, I cannot help but wonder if he was in mufiti his entire trip? Including the Titanic?