force_tz returns a the date-time that has the same clock time as x in the new
Although the new date-time has the same clock time (e.g. the
same values in the year, month, days, etc. elements) it is a
different moment of time than the input date-time. force_tz defaults to the
Universal Coordinated time zone (UTC) when an unrecognized time zone is
Sys.timezone() for more information on how R
recognizes time zones.
force_tz(time, tzone = "", roll = FALSE)
a POSIXct, POSIXlt, Date, chron date-time object, or a data.frame
object. When a data.frame all POSIXt elements of a data.frame are processed
a character string containing the time zone to convert to. R must recognize the name contained in the string as a time zone on your system.
logical. If TRUE, and
a POSIXct object in the updated time zone
x <- ymd_hms("2009-08-07 00:00:01", tz = "America/New_York") force_tz(x, "UTC")#>  "2009-08-07 00:00:01 UTC"force_tz(x, "Europe/Amsterdam")#>  "2009-08-07 00:00:01 CEST"## DST skip: y <- ymd_hms("2010-03-14 02:05:05 UTC") force_tz(y, "America/New_York", roll=FALSE)#>  NAforce_tz(y, "America/New_York", roll=TRUE)#>  "2010-03-14 03:00:00 EDT"