---
title: OS_CLOCK_MACH_ABSOLUTE_TIME
framework: os
role: symbol
role_heading: Enumeration Case
path: os/os_clockid_t/os_clock_mach_absolute_time
---

# OS_CLOCK_MACH_ABSOLUTE_TIME

Units relative to Mach absolute time value.

## Declaration

```occ
OS_CLOCK_MACH_ABSOLUTE_TIME
```

## Discussion

Discussion Specify a time relative to the value that the mach_current_time function returns.