CLOCKDIFF(8) iputils CLOCKDIFF(8) (NAME) clockdiff - (SYNOPSIS) clockdiff [-o] [-o1] [--time-format ctime iso] [-V] {destination} (DESCRIPTION) clockdiff destination ( ) ICMP TIMESTAMP [2] IP TIMESTAMP [3] ICMP ECHO [1] . (OPTIONS) -o IP TIMESTAMP ICMP ECHO ICMP TIMESTAMP. ICMP TIMESTAMP ( Solaris <2.4) . -o1 -o IP TIMESTAMP . -o . -T, --time-format ctime iso ISO-8601 ctime. ctime . ISO (parse) . -I --time-format iso . -h, --help . -V, --version . (WARNINGS) o ( Cisco) RFC . o xntpd ( Solaris>2.4) . IP (time-of-day) . NTP . o clockdiff (modulo 24 days) . (SEE ALSO) ping(8), arping(8), tracepath(8). (REFERENCES) [1] ICMP ECHO RFC0792 . [2] ICMP TIMESTAMP RFC0792 . [3] IP TIMESTAMP RFC0791 . . (AUTHOR) clockdiff Alexey Kuznetsov . BSD timed . (SECURITY) clockdiff CAP_NET_RAW CAP_SYS_NICE . set-uid root . (AVAILABILITY) clockdiff iputils . iputils CLOCKDIFF(8)