std::timespec

 

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C-style date and time

 

C-style date and time utilities

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difftime

time

clock

timespec_get (C++17)

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asctime

ctime

strftime

wcsftime

gmtime

localtime

mktime

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CLOCKS_PER_SEC

Types

tm

time_t

clock_t

timespec (C++17)

 

Defined in header <ctime>
struct timespec;		(since C++17)

Structure holding an interval broken down into seconds and nanoseconds.

Member objects

std::time_t tv_sec	whole seconds – >= 0
long tv_nsec	nanoseconds – [0, 999999999]

The declaration order of tv_sec and tv_nsec is unspecified. Implementation may add other data members to timespec.

Notes

The type of tv_nsec is long long on some platforms, which is currently non-conforming in C++, but is conforming since C23.

See also

timespec_get (C++17)	returns the calendar time in seconds and nanoseconds based on a given time base (function)
tm	calendar time type (class)
C documentation for timespec