date_leap_year {clock} | R Documentation |
date_leap_year()
detects if the year is a leap year.
date_leap_year(x)
x |
A date or date-time to detect leap years in. |
A logical vector the same size as x
. Returns TRUE
if in a leap
year, FALSE
if not in a leap year, and NA
if x
is NA
.
x <- as.Date("2019-01-01")
x <- add_years(x, 0:5)
date_leap_year(x)
y <- as.POSIXct("2019-01-01", "America/New_York")
y <- add_years(y, 0:5)
date_leap_year(y)