yearmonthweekdaycountbetween {clock}  R Documentation 
This is a yearmonthweekday method for the calendar_count_between()
generic. It counts the number of precision
units between start
and end
(i.e., the number of years or months).
## S3 method for class 'clock_year_month_weekday'
calendar_count_between(start, end, precision, ..., n = 1L)
start , end 
A pair of yearmonthweekday vectors. These will be recycled to their common size. 
precision 
One of:

... 
These dots are for future extensions and must be empty. 
n 
A single positive integer specifying a multiple of 
Remember that yearmonthweekday is not comparable when it is "day"
precision or finer, so this method is only defined for "year"
and
"month"
precision yearmonthweekday objects.
"quarter"
is equivalent to "month"
precision with n
set to n * 3L
.
An integer representing the number of precision
units between
start
and end
.
# Compute the number of months between two dates
x < year_month_weekday(2001, 2)
y < year_month_weekday(2021, c(1, 3))
calendar_count_between(x, y, "month")
# Remember that day precision or finer yearmonthweekday objects
# are not comparable, so this won't work
x < year_month_weekday(2001, 2, 1, 1)
try(calendar_count_between(x, x, "month"))