Get First / Last Day of a Month

Source: R/first_of.R

Get First / Last Day of a Month

Get First or Last Day of Month From Year and Month

first_of_month(x)

# S3 method for default
first_of_month(x)

last_of_month(x)

# S3 method for default
last_of_month(x)

first_of_ym(x, m = NULL)

last_of_ym(x, m = NULL)

Arguments

x

Anything that can be coerced to a date with base::as.Date()
m

Two integer (vectors). m is optional and the interpretation of x will depend on whether m is supplied or not:

  • if only x is supplied, x will be passed to as_date_ym() (e.g. x = 201604 means April 2016)

  • if x and m are supplied, x is interpreted as year and m as month.

Value

a Date

See also

first_of_month()

Examples


first_of_month("2016-06-04")
#> [1] "2016-06-01"
last_of_month("2016-06-04")
#> [1] "2016-06-30"


first_of_ym(2016, 1)
#> [1] "2016-01-01"
first_of_ym(201601)
#> [1] "2016-01-01"