#### 8.2.3.7 calendarDuration.plus ¶

Method: `out =` plus `(obj, B)` ¶

  Addition: add to a `calendarDuration`.

  All the calendar elements (properties) of the two inputs are added together. No normalization is done across the elements, aside from the normalization of NaNs.

  B may be a `calendarDuration`, `duration`, or numeric. If B is numeric, it is converted to a `calendarDuration` using `caldays(B)`.

  Returns a `calendarDuration`.