Periods

class(days(1))

## [1] "Period"
## attr(,"package")
## [1] "lubridate"

ymd_hms("2024-03-10 01:00:00", tz = "America/Chicago") + ddays(1)

## [1] "2024-03-11 02:00:00 CDT"

ymd_hms("2024-03-10 01:00:00", tz = "America/Chicago") + days(1)

## [1] "2024-03-11 01:00:00 CDT"