Get/set Date component of a date-time.
Date-time must be a POSIXct, POSIXlt, Date, chron, yearmon, yearqtr, zoo, zooreg, timeDate, xts, its, ti, jul, timeSeries, and fts objects.
date(x)date(x) <- value
- a date-time object
- an object for which the
date()function is defined
date does not yet support years before 0 C.E.
date is not defined for Period objects.
the date of x as a Date
x <- as.POSIXct("2012-03-26 23:12:13", tz = "Etc/GMT+8") date(x) as.Date(x) # by default as.Date assumes you want to know the date in UTC as.Date(x, tz = "Etc/GMT+8") date(x) <- as.Date("2000-01-02") x
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