The <utime.h> header shall declare the structure utimbuf,
which shall include the following members:
time_t actime Access time.
time_t modtime Modification time.
The times shall be measured in seconds since the Epoch.
The type time_t shall be defined as described in <sys/types.h>
.
The following shall be declared as a function and may also be defined
as a macro. A function prototype shall be provided.
int utime(const char *, const struct utimbuf *);
The following sections are informative.