The current day and time
now(tzone = "")today(tzone = "")
a character vector specifying which time zone you would like the current time in. tzone defaults to your computer's system timezone. You can retrieve the current time in the Universal Coordinated Time (UTC) with now("UTC").
now - the current datetime as a POSIXct object
# NOT RUN {
now()
now("GMT")
now("")
now() == now() # would be TRUE if computer processed both at the same instant
now() < now() # TRUE
now() > now() # FALSE
today()
today("GMT")
today() == today("GMT") # not always true
today() < as.Date("2999-01-01") # TRUE (so far)
# }
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