---
layout: stdlib-reference
---

# getRealtimeClock

## Description





## Signature 

<pre>
<a href="../types/vector/index.html" class="code_type">vector</a>&lt;<span class="code_keyword">uint</span>, 2&gt; <a href="getrealtimeclock-3b.html">getRealtimeClock</a>();

</pre>

## Availability and Requirements

Defined for the following targets:

#### hlsl
Available in all stages.

Requires capability: `hlsl_nvapi`.
#### glsl
Available in all stages.

#### cpp
Available in all stages.

#### cuda
Available in all stages.

#### spirv
Available in all stages.

Requires capability: `spvShaderClockKHR`.