

   RReettuurrnn HHoouurrss,, MMiinnuutteess,, oorr SSeeccoonnddss ffrroomm aa TTiimmeess OObbjjeecctt

        hours(x)
        minutes(x)
        seconds(x)

   AArrgguummeennttss::

          x: an object inheriting from class "times".

   VVaalluuee::

        the corresponding time period as an ordered factor.

   SSeeee AAllssoo::

        `chron', `dates', `times'

   EExxaammpplleess::

        x <- chron(dates = c("02/27/92", "02/27/92", "01/14/92", "02/28/92"),
                   times = c("23:03:20", "22:29:56", "01:03:30", "18:21:03"))
        h <- hours(x)
        y <- runif(4)
        boxplot(y ~ h)

