---
title: SubtractFWCycleTimeFromFWCycleTime
framework: kernel
role: symbol
role_heading: Function
path: kernel/1589090-subtractfwcycletimefromfwcycleti
---

# SubtractFWCycleTimeFromFWCycleTime

## Declaration

```occ
UInt32 SubtractFWCycleTimeFromFWCycleTime(UInt32 cycleTime1, UInt32 cycleTime2);
```

## See Also

### Utilities

- [AddFWCycleTimeToFWCycleTime](kernel/1589089-addfwcycletimetofwcycletime.md)
- [IOFWGetAbsoluteTime](kernel/1589086-iofwgetabsolutetime.md)
- [FWComputeCRC16](kernel/1589088-fwcomputecrc16.md)
- [FWUpdateCRC16](kernel/1589087-fwupdatecrc16.md)