Sentence:  He again stated that he was `` a regular minister '' ; that he was `` devoting an average of 100 hours a <WSD>month</WSD> to actual preaching publicly '' , in addition to 50 to 75 hours in other ministerial duties , and that he opposed war in any form . 
Meaning of the word marked with <WSD> tags:  one of the twelve divisions of the calendar year