Working day which is substantially less than the normal 8 hours.
You are late in this morning - working Bartlett Hours?
by Steve Canton August 09, 2006
A person who works many more hours than they are expected to, solely for the good of others and for no personal gain could be described as working "bartlett hours".
"Working through your meal breaks again eh? It must be hard keeping up those Bartlett hours!"
by Mother Teresa's assistant November 26, 2007