ntpdate-debian
set the date and time via NTP
SYNOPSIS
ntpdate-debian [ -bBdoqsuv ] [ -a key ] [ -e authdelay ] [ -k keyfile ] [ -o version ] [ -p samples ] [ -t timeout ]
DESCRIPTION
ntpdate-debian is identical to ntpdate(8) except that it uses the configuration in /etc/default/ntpdate by default. ntpdate sets the local date and time by polling Network Time Protocol (NTP) servers.