operating on timeval structures are described in timeradd (3). SEE ALSO date (1), adjtimex ... time (2), ctime (3), ftime (3), timeradd (3), capabilities (7), time (7), vdso (7), h…operating on timeval structures are described in timeradd (3). SEE ALSO date (1), adjtimex ... time (2), ctime (3), ftime (3), timeradd (3), capabilities (7), time (7), vdso (7), h…