#### 8.2.46 NaT ¶

Function: `out =` NaT `()` ¶
Function: `out =` NaT `(sz)` ¶

  “Not-a-Time”. Creates missing-valued datetime arrays.

  Constructs a new `datetime` array of all `NaT` values of the given size. If no input sz is given, the result is a scalar `NaT`.

  `NaT` is the `datetime` equivalent of `NaN`. It represents a missing or invalid value. `NaT` values never compare equal to, greater than, or less than any value, including other `NaT`s. Doing arithmetic with a `NaT` and any other value results in a `NaT`.

  `NaT` currently cannot create NaT arrays of type `localdate`. To do that, use localdate.NaT instead.