DateCoercion

Convert a variety of date-time classes to POSIXlt and
  POSIXct

internal

Lubridate makes it easier to work with dates and times by
        providing functions to identify and parse date-time data,
        extract and modify components of a date-time (years, months,
        days, hours, minutes, and seconds), perform accurate math on
        date-times, handle time zones and Daylight Savings Time.
        Lubridate has a consistent, memorable syntax, that makes
        working with dates fun instead of frustrating.

DateCoercion: Convert a variety of date-time classes to POSIXlt and POSIXct

Description

Arguments