# CountDown

*in [Lib.string.datetime](README.md)*

Prints a formatted string counting down a duration or time to/since a fixed date.

## Input Parameters
| Name (Relevancy & Type) | Description |
|---|---|
| **LaunchTime** (String) | — |
| **Format** (String) | — |

## Outputs
| Name | Type |
|---|---|
| **Output** | System.String |