:orphan:
# PetscTime
Returns the current time from some base time in the past in seconds. 
## Synopsis
```
#include <petsctime.h>
PetscErrorCode PetscTime(PetscLogDouble *v)
```
Not Collective


## Output Parameter

- ***v -*** time counter



## Usage
```none
     PetscLogDouble v;
     PetscTime(&v);
     .... perform some calculation ...
     printf("Time for operation %g\n",v);
```





## Notes
Since the PETSc libraries incorporate timing of phases and operations,
we do not recommend ever using PetscTime()
The options database command  `-log_view` activates
PETSc library timing.


## See Also
 `PetscTimeSubtract()`, `PetscTimeAdd()`, `PetscLogStageRegister()`, `PetscLogEventRegister()`, `PetscLogEventBegin()`, `PetscLogEventEnd()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petsctime.h.html#PetscTime">include/petsctime.h</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/ksp/tutorials/bench_kspsolve.c.html">src/ksp/ksp/tutorials/bench_kspsolve.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/include/petsctime.h)


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