Sentence:  How in the world had he formerly found time to build up a business , raise a family , be on half a dozen boards , work actively on committees and either go out in the <WSD>evening</WSD> or plow through the contents of a bulging brief case ? 
Meaning of the word marked with <WSD> tags:  the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)