# VK_KHR_calibrated_timestamps(3) Manual Page

## Name

VK_KHR_calibrated_timestamps - device extension

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## Registered Extension Number

544

## Revision

1

## Ratification Status

Ratified

## Extension and Version Dependencies

VK_KHR_get_physical_device_properties2
or
Vulkan Version 1.1

## Contact

- Daniel Rakos [GitHub]aqnuep

## Extension Proposal

VK_EXT_calibrated_timestamps

## Other Extension Metadata

Last Modified Date

  2023-07-12

IP Status

  No known IP claims.

Contributors

  - Matthaeus G. Chajdas, AMD

  - Alan Harrison, AMD

  - Derrick Owens, AMD

  - Daniel Rakos, RasterGrid

  - Faith Ekstrand, Intel

  - Keith Packard, Valve

## Description

This extension provides an interface to query calibrated timestamps obtained quasi simultaneously from two time domains.

## New Commands

- vkGetCalibratedTimestampsKHR

- vkGetPhysicalDeviceCalibrateableTimeDomainsKHR

## New Structures

- VkCalibratedTimestampInfoKHR

## New Enums

- VkTimeDomainKHR

## New Enum Constants

- `VK_KHR_CALIBRATED_TIMESTAMPS_EXTENSION_NAME`

- `VK_KHR_CALIBRATED_TIMESTAMPS_SPEC_VERSION`

- Extending VkStructureType:

  - `VK_STRUCTURE_TYPE_CALIBRATED_TIMESTAMP_INFO_KHR`

## Version History

- Revision 1, 2023-07-12 (Daniel Rakos)

  - Initial draft.

## See Also

No cross-references are available

## Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

## Copyright

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0