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Time periods (We)

Time (W)
    Chronological time (Wc)
    Delays (Wd)
         Related Term (Associative): Flight delays (Bbjkmd); Travel time (Bkn); Traffic delays (Bthd); Stopped time delays (Bthds)
    Time periods (We)
        Centuries (Wea)
        Seasons (Web)
        Periods of the day (Weg)
             Use For: Time of day
             Related Term (Associative): 
        Peak periods (Wep)
        Off peak periods (Weq)
    Time duration (Wg)
    Time intervals (Wi)
         Use For: Interval (Time); Periodicity
    Time alteration (Wq)
    Relative time (Wr)