# unixTime

Description: unixTime cheatcode documentation

Note: This document was authored using MDX

  Source: https://github.com/NomicFoundation/hardhat-website/tree/main/src/content/docs/docs/reference/cheatcodes/External/unix-time.mdx

{/* This document contains content copied/adapted from the Foundry Book (MIT licensed). See LICENSE in the parent directory. */}

### Signature

```solidity
function unixTime() external returns (uint milliseconds);
```

### Description

Returns the time since unix epoch in milliseconds.

### Examples

```solidity
uint start = vm.unixTime();
vm.sleep(10_000); // Halts execution for 10 seconds
uint end = vm.unixTime();
assertEq(end - start, 10_000);
```