difftime(3P) INTERACTIVE UNIX System (POSIX) difftime(3P)
NAME
difftime - computes the difference between two calendar
times
SYNOPSIS
#include <time.h>
double difftime(time1, time0);
time_t time1;
time_t time2;
DESCRIPTION
The difftime function computes the difference between two
calendar times: time1 - time0.
RETURN VALUE
The difftime function returns the difference expressed in
seconds as a double.
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