RDATE(8)

NAME
rdate - set the system's date from a remote host

SYNOPSIS
rdate [-psa] host

DESCRIPTION
Rdate displays and sets the local date and time from the host name or address given as the argument. It uses the RFC868 protocol which is usually implemented as a built-in service of inetd(1)

Available options:

-p  Do not set, just print the remote time

-s  Do not print the time.

-a  Use the adjtime(2) call to gradually skew the local time to the remote time rather than just hopping.

SEE ALSO
inetd(1) adjtime(2)