Sentence:  The experience of time is therefore a measurable experience as was similarly the case in the social form of the mass experience. All the work done by craftsmen, secretaries, administrators, and the like, is “<WSD>clockable</WSD>.” Work begun and finished is clocked ("nine-to-fivers"). 
Meaning of the word marked with <WSD> tags:  Able to be recorded by or on a timeclock, because it occurs during specific times.