timespec.md

# timespec
## **Overview**
**Related Modules:**
[TIME-SYS](zh-cn_topic_0000001055078085.md)
**Description:**
Describes a period of time, accurate to nanoseconds.
## **Summary**
## Data Fields

Variable Name	Description
tv_sec	time_t
tv_nsec	long

## **Details**
## **Field Documentation**
## tv\_nsec
```
long timespec::tv_nsec
```
**Description:**
Nanosecond
## tv\_sec
```
time_t timespec::tv_sec
```
**Description:**
Second