posix_utils: Various POSIX utilities

In lubridate: Make Dealing with Dates a Little Easier

Various POSIX utilities

Description

POSIXct() mirrors primitive constructors in base R (double(), character() etc.)

Usage

is.POSIXt(x)

is.POSIXlt(x)

is.POSIXct(x)

POSIXct(length = 0L, tz = "UTC")

NA_POSIXct_

Arguments

x	an R object
length	A non-negative number specifying the desired length. Supplying an argument of length other than one is an error.
tz	a timezone (defaults to "utc")

Format

An object of class POSIXct (inherits from POSIXt) of length 1.

Value

TRUE if x is a POSIXct or POSIXlt object, FALSE otherwise.

See Also

is.instant(), is.timespan(), is.Date()

Examples

is.POSIXt(as.Date("2009-08-03"))
is.POSIXt(as.POSIXct("2009-08-03"))

lubridate documentation built on April 3, 2025, 6:43 p.m.