Lubridate jumps over a month

[adeldaoud]

Lubridate jumps over the 3ed month here:

as.period(interval(ymd("1985-12-31"),ymd("1986-01-01")))%/%months(1)
as.period(interval(ymd("1985-12-31"),ymd("1986-02-01")))%/%months(1)
as.period(interval(ymd("1985-12-31"),ymd("1986-03-01")))%/%months(1)
as.period(interval(ymd("1985-12-31"),ymd("1986-04-01")))%/%months(1)
as.period(interval(ymd("1985-12-31"),ymd("1986-05-01")))%/%months(1)

This seems to be a bug, or at least an unexpected calculation.

[vspinu]

The problem is with the

> as.period(interval(ymd("1985-12-31"),ymd("1986-03-01")))
[1] "2m -2d 0H 0M 0S"

There should be no negative days in as.period conversion.