This family of functions extract fields from a calendar vector. Each calendar has its own set of supported getters, which are documented on their own help page:
There are also convenience methods for extracting certain components directly from R's native date and date-time types.
get_year(x) get_quarter(x) get_month(x) get_week(x) get_day(x) get_hour(x) get_minute(x) get_second(x) get_millisecond(x) get_microsecond(x) get_nanosecond(x) get_index(x)
You cannot extract components directly from a time point type, such as sys-time or naive-time. Convert it to a calendar type first. Similarly, a zoned-time must be converted to either a sys-time or naive-time, and then to a calendar type, to be able to extract components from it.
x <- year_month_day(2019, 1:3, 5:7, 1, 20, 30) get_month(x) #>  1 2 3 get_day(x) #>  5 6 7 get_second(x) #>  30 30 30