Date-time must be a POSIXct, POSIXlt, Date, Period, chron, yearmon, yearqtr, zoo, zooreg, timeDate, xts, its, ti, jul, timeSeries, and fts objects.

hour(x)

hour(x) <- value

Arguments

x

a date-time object

value

numeric value to be assigned to the hour component

Value

the hours element of x as a decimal number

Examples

x <- ymd("2012-03-26") hour(x)
#> [1] 0
hour(x) <- 1 hour(x) <- 25 hour(x) > 2
#> [1] FALSE