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

Usage

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