---
title: UpdateCurrentZeroTimestamp
framework: VideoDriverKit
role: symbol
role_heading: Instance Method
platforms: [driverkit 27.0+]
path: videodriverkit/iouservideoclockdevice/updatecurrentzerotimestamp
---

# UpdateCurrentZeroTimestamp

Update the current timestamp value.

## Declaration

```occ
void UpdateCurrentZeroTimestamp(uint64_t in_sample_time, uint64_t in_host_time);
```

## Parameters

- `in_sample_time`: uint64_t the most current sample time being tracked by the hardware device.
- `in_host_time`: uint64_t the most current host time being tracked by the hardware device.

## Discussion

Discussion Updating the current timestamp should use the time passed in the hardware interrupt.

## See Also

### Accessing timestamps

- [GetCurrentZeroTimestamp](videodriverkit/iouservideoclockdevice/getcurrentzerotimestamp.md)