WWV(1) WWV(1) NAME wwv - print and set the date from accurate clock SYNOPSIS wwv [ -b -s -f -u ] DESCRIPTION Wwv connects to a clock synchronized with radio station WWV. With no argument it prints the time obtained. It accepts these arguments: -b Print both the WWV time and the system's current idea of the time. -s Set the system's time to agree with WWV. You must be super-user. The system time cannot be changed by more than 20 minutes. -f With -s, force the time to be set by WWV even if the local time disagrees by more than 20 minutes. -u Report time in UTC rather than local time. FILES /usr/adm/wtmp to record time-setting SEE ALSO date (1), utmp(5) BUGS The WWV clock has been observed to slip sync by an integral number of minutes or hours from the radio standard.