# TimelinePoint

> A reading on the test clock. t and elapsed are minutes.

> **TimelinePoint** = `object`

A reading on the test clock. `t` and `elapsed` are minutes.

## Properties

### depth

> **depth**: `number`

***

### drawdown

> **drawdown**: `number` \| `null`

`depth − static_level`, or `null` without a static level.

***

### elapsed

> **elapsed**: `number`

Minutes since its own step started (or since pump shutdown).

***

### t

> **t**: `number`

Minutes since the first step started.