---
title: kIOTimerClockUptimeRaw
framework: driverkit
role: symbol
role_heading: Enumeration Case
path: driverkit/kiotimerclockuptimeraw
---

# kIOTimerClockUptimeRaw

A clock type that increments monotonically, but does not increment when the system is asleep.

## Declaration

```occ
kIOTimerClockUptimeRaw
```

## Discussion

Discussion This constant is the type of clock obtained by passing CLOCK_MONOTONIC_RAW to clock_gettime_nsec_np(_:). It’s equivalent to a value from mach_absolute_time(), but in nanoseconds.

## See Also

### Timer Options

- [kIOTimerClockMonotonicRaw](driverkit/kiotimerclockmonotonicraw.md)
- [kIOTimerClockRealTime](driverkit/kiotimerclockrealtime.md)
- [kIOTimerClockWallTime](driverkit/kiotimerclockwalltime.md)
- [kIOTimerClockMachAbsoluteTime](driverkit/kiotimerclockmachabsolutetime.md)
- [kIOTimerClockMachContinuousTime](driverkit/kiotimerclockmachcontinuoustime.md)